721002240

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{8941}}^1$

素因数の和:8975

約数の個数: 216

約数和(自身を含む): 2851281888

約数和(自身を除く): 2130279648

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 256, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 768, 840, 896, 960, 1008, 1120, 1152, 1260, 1280, 1344, 1440, 1680, 1792, 1920, 2016, 2240, 2304, 2520, 2688, 2880, 3360, 3840, 4032, 4480, 5040, 5376, 5760, 6720, 8064, 8941, 8960, 10080, 11520, 13440, 16128, 17882, 20160, 26823, 26880, 35764, 40320, 44705, 53646, 62587, 71528, 80469, 80640, 89410, 107292, 125174, 134115, 143056, 160938, 178820, 187761, 214584, 250348, 268230, 286112, 312935, 321876, 357640, 375522, 402345, 429168, 500696, 536460, 563283, 572224, 625870, 643752, 715280, 751044, 804690, 858336, 938805, 1001392, 1072920, 1126566, 1144448, 1251740, 1287504, 1430560, 1502088, 1609380, 1716672, 1877610, 2002784, 2145840, 2253132, 2288896, 2503480, 2575008, 2816415, 2861120, 3004176, 3218760, 3433344, 3755220, 4005568, 4291680, 4506264, 5006960, 5150016, 5632830, 5722240, 6008352, 6437520, 6866688, 7510440, 8011136, 8583360, 9012528, 10013920, 10300032, 11265660, 11444480, 12016704, 12875040, 15020880, 16022272, 17166720, 18025056, 20027840, 20600064, 22531320, 24033408, 25750080, 30041760, 34333440, 36050112, 40055680, 45062640, 48066816, 51500160, 60083520, 72100224, 80111360, 90125280, 103000320, 120167040, 144200448, 180250560, 240334080, 360501120, 721002240]

約数ペア:

[(1, 721002240), (2, 360501120), (3, 240334080), (4, 180250560), (5, 144200448), (6, 120167040), (7, 103000320), (8, 90125280), (9, 80111360), (10, 72100224), (12, 60083520), (14, 51500160), (15, 48066816), (16, 45062640), (18, 40055680), (20, 36050112), (21, 34333440), (24, 30041760), (28, 25750080), (30, 24033408), (32, 22531320), (35, 20600064), (36, 20027840), (40, 18025056), (42, 17166720), (45, 16022272), (48, 15020880), (56, 12875040), (60, 12016704), (63, 11444480), (64, 11265660), (70, 10300032), (72, 10013920), (80, 9012528), (84, 8583360), (90, 8011136), (96, 7510440), (105, 6866688), (112, 6437520), (120, 6008352), (126, 5722240), (128, 5632830), (140, 5150016), (144, 5006960), (160, 4506264), (168, 4291680), (180, 4005568), (192, 3755220), (210, 3433344), (224, 3218760), (240, 3004176), (252, 2861120), (256, 2816415), (280, 2575008), (288, 2503480), (315, 2288896), (320, 2253132), (336, 2145840), (360, 2002784), (384, 1877610), (420, 1716672), (448, 1609380), (480, 1502088), (504, 1430560), (560, 1287504), (576, 1251740), (630, 1144448), (640, 1126566), (672, 1072920), (720, 1001392), (768, 938805), (840, 858336), (896, 804690), (960, 751044), (1008, 715280), (1120, 643752), (1152, 625870), (1260, 572224), (1280, 563283), (1344, 536460), (1440, 500696), (1680, 429168), (1792, 402345), (1920, 375522), (2016, 357640), (2240, 321876), (2304, 312935), (2520, 286112), (2688, 268230), (2880, 250348), (3360, 214584), (3840, 187761), (4032, 178820), (4480, 160938), (5040, 143056), (5376, 134115), (5760, 125174), (6720, 107292), (8064, 89410), (8941, 80640), (8960, 80469), (10080, 71528), (11520, 62587), (13440, 53646), (16128, 44705), (17882, 40320), (20160, 35764), (26823, 26880)]