642506280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{409}}^1$

素因数の和:508

約数の個数: 256

約数和(自身を含む): 2231712000

約数和(自身を除く): 1589205720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 19, 20, 24, 26, 30, 38, 39, 40, 52, 53, 57, 60, 65, 76, 78, 95, 104, 106, 114, 120, 130, 152, 156, 159, 190, 195, 212, 228, 247, 260, 265, 285, 312, 318, 380, 390, 409, 424, 456, 494, 520, 530, 570, 636, 689, 741, 760, 780, 795, 818, 988, 1007, 1060, 1140, 1227, 1235, 1272, 1378, 1482, 1560, 1590, 1636, 1976, 2014, 2045, 2067, 2120, 2280, 2454, 2470, 2756, 2964, 3021, 3180, 3272, 3445, 3705, 4028, 4090, 4134, 4908, 4940, 5035, 5317, 5512, 5928, 6042, 6135, 6360, 6890, 7410, 7771, 8056, 8180, 8268, 9816, 9880, 10070, 10335, 10634, 12084, 12270, 13091, 13780, 14820, 15105, 15542, 15951, 16360, 16536, 20140, 20670, 21268, 21677, 23313, 24168, 24540, 26182, 26585, 27560, 29640, 30210, 31084, 31902, 38855, 39273, 40280, 41340, 42536, 43354, 46626, 49080, 52364, 53170, 60420, 62168, 63804, 65031, 65455, 77710, 78546, 79755, 82680, 86708, 93252, 101023, 104728, 106340, 108385, 116565, 120840, 127608, 130062, 130910, 155420, 157092, 159510, 173416, 186504, 196365, 202046, 212680, 216770, 233130, 260124, 261820, 281801, 303069, 310840, 314184, 319020, 325155, 392730, 404092, 411863, 433540, 466260, 505115, 520248, 523640, 563602, 606138, 638040, 650310, 785460, 808184, 823726, 845403, 867080, 932520, 1010230, 1127204, 1212276, 1235589, 1300620, 1409005, 1515345, 1570920, 1647452, 1690806, 2020460, 2059315, 2254408, 2424552, 2471178, 2601240, 2818010, 3030690, 3294904, 3381612, 4040920, 4118630, 4227015, 4942356, 5354219, 5636020, 6061380, 6177945, 6763224, 8237260, 8454030, 9884712, 10708438, 11272040, 12122760, 12355890, 16062657, 16474520, 16908060, 21416876, 24711780, 26771095, 32125314, 33816120, 42833752, 49423560, 53542190, 64250628, 80313285, 107084380, 128501256, 160626570, 214168760, 321253140, 642506280]

約数ペア:

[(1, 642506280), (2, 321253140), (3, 214168760), (4, 160626570), (5, 128501256), (6, 107084380), (8, 80313285), (10, 64250628), (12, 53542190), (13, 49423560), (15, 42833752), (19, 33816120), (20, 32125314), (24, 26771095), (26, 24711780), (30, 21416876), (38, 16908060), (39, 16474520), (40, 16062657), (52, 12355890), (53, 12122760), (57, 11272040), (60, 10708438), (65, 9884712), (76, 8454030), (78, 8237260), (95, 6763224), (104, 6177945), (106, 6061380), (114, 5636020), (120, 5354219), (130, 4942356), (152, 4227015), (156, 4118630), (159, 4040920), (190, 3381612), (195, 3294904), (212, 3030690), (228, 2818010), (247, 2601240), (260, 2471178), (265, 2424552), (285, 2254408), (312, 2059315), (318, 2020460), (380, 1690806), (390, 1647452), (409, 1570920), (424, 1515345), (456, 1409005), (494, 1300620), (520, 1235589), (530, 1212276), (570, 1127204), (636, 1010230), (689, 932520), (741, 867080), (760, 845403), (780, 823726), (795, 808184), (818, 785460), (988, 650310), (1007, 638040), (1060, 606138), (1140, 563602), (1227, 523640), (1235, 520248), (1272, 505115), (1378, 466260), (1482, 433540), (1560, 411863), (1590, 404092), (1636, 392730), (1976, 325155), (2014, 319020), (2045, 314184), (2067, 310840), (2120, 303069), (2280, 281801), (2454, 261820), (2470, 260124), (2756, 233130), (2964, 216770), (3021, 212680), (3180, 202046), (3272, 196365), (3445, 186504), (3705, 173416), (4028, 159510), (4090, 157092), (4134, 155420), (4908, 130910), (4940, 130062), (5035, 127608), (5317, 120840), (5512, 116565), (5928, 108385), (6042, 106340), (6135, 104728), (6360, 101023), (6890, 93252), (7410, 86708), (7771, 82680), (8056, 79755), (8180, 78546), (8268, 77710), (9816, 65455), (9880, 65031), (10070, 63804), (10335, 62168), (10634, 60420), (12084, 53170), (12270, 52364), (13091, 49080), (13780, 46626), (14820, 43354), (15105, 42536), (15542, 41340), (15951, 40280), (16360, 39273), (16536, 38855), (20140, 31902), (20670, 31084), (21268, 30210), (21677, 29640), (23313, 27560), (24168, 26585), (24540, 26182)]