20123795280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{28109}}^1$

素因数の和:28301

約数の個数: 160

約数和(自身を含む): 66087734400

約数和(自身を除く): 45963939120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 157, 190, 228, 240, 285, 304, 314, 380, 456, 471, 570, 628, 760, 785, 912, 942, 1140, 1256, 1520, 1570, 1884, 2280, 2355, 2512, 2983, 3140, 3768, 4560, 4710, 5966, 6280, 7536, 8949, 9420, 11932, 12560, 14915, 17898, 18840, 23864, 28109, 29830, 35796, 37680, 44745, 47728, 56218, 59660, 71592, 84327, 89490, 112436, 119320, 140545, 143184, 168654, 178980, 224872, 238640, 281090, 337308, 357960, 421635, 449744, 534071, 562180, 674616, 715920, 843270, 1068142, 1124360, 1349232, 1602213, 1686540, 2136284, 2248720, 2670355, 3204426, 3373080, 4272568, 4413113, 5340710, 6408852, 6746160, 8011065, 8545136, 8826226, 10681420, 12817704, 13239339, 16022130, 17652452, 21362840, 22065565, 25635408, 26478678, 32044260, 35304904, 42725680, 44131130, 52957356, 64088520, 66196695, 70609808, 83849147, 88262260, 105914712, 128177040, 132393390, 167698294, 176524520, 211829424, 251547441, 264786780, 335396588, 353049040, 419245735, 503094882, 529573560, 670793176, 838491470, 1006189764, 1059147120, 1257737205, 1341586352, 1676982940, 2012379528, 2515474410, 3353965880, 4024759056, 5030948820, 6707931760, 10061897640, 20123795280]

約数ペア:

[(1, 20123795280), (2, 10061897640), (3, 6707931760), (4, 5030948820), (5, 4024759056), (6, 3353965880), (8, 2515474410), (10, 2012379528), (12, 1676982940), (15, 1341586352), (16, 1257737205), (19, 1059147120), (20, 1006189764), (24, 838491470), (30, 670793176), (38, 529573560), (40, 503094882), (48, 419245735), (57, 353049040), (60, 335396588), (76, 264786780), (80, 251547441), (95, 211829424), (114, 176524520), (120, 167698294), (152, 132393390), (157, 128177040), (190, 105914712), (228, 88262260), (240, 83849147), (285, 70609808), (304, 66196695), (314, 64088520), (380, 52957356), (456, 44131130), (471, 42725680), (570, 35304904), (628, 32044260), (760, 26478678), (785, 25635408), (912, 22065565), (942, 21362840), (1140, 17652452), (1256, 16022130), (1520, 13239339), (1570, 12817704), (1884, 10681420), (2280, 8826226), (2355, 8545136), (2512, 8011065), (2983, 6746160), (3140, 6408852), (3768, 5340710), (4560, 4413113), (4710, 4272568), (5966, 3373080), (6280, 3204426), (7536, 2670355), (8949, 2248720), (9420, 2136284), (11932, 1686540), (12560, 1602213), (14915, 1349232), (17898, 1124360), (18840, 1068142), (23864, 843270), (28109, 715920), (29830, 674616), (35796, 562180), (37680, 534071), (44745, 449744), (47728, 421635), (56218, 357960), (59660, 337308), (71592, 281090), (84327, 238640), (89490, 224872), (112436, 178980), (119320, 168654), (140545, 143184)]