20320501040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{9643}}^1$

素因数の和:9787

約数の個数: 160

約数和(自身を含む): 55793857536

約数和(自身を除く): 35473356496

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 53, 56, 70, 71, 80, 106, 112, 140, 142, 212, 265, 280, 284, 355, 371, 424, 497, 530, 560, 568, 710, 742, 848, 994, 1060, 1136, 1420, 1484, 1855, 1988, 2120, 2485, 2840, 2968, 3710, 3763, 3976, 4240, 4970, 5680, 5936, 7420, 7526, 7952, 9643, 9940, 14840, 15052, 18815, 19286, 19880, 26341, 29680, 30104, 37630, 38572, 39760, 48215, 52682, 60208, 67501, 75260, 77144, 96430, 105364, 131705, 135002, 150520, 154288, 192860, 210728, 263410, 270004, 301040, 337505, 385720, 421456, 511079, 526820, 540008, 675010, 684653, 771440, 1022158, 1053640, 1080016, 1350020, 1369306, 2044316, 2107280, 2555395, 2700040, 2738612, 3423265, 3577553, 4088632, 4792571, 5110790, 5400080, 5477224, 6846530, 7155106, 8177264, 9585142, 10221580, 10954448, 13693060, 14310212, 17887765, 19170284, 20443160, 23962855, 27386120, 28620424, 35775530, 36286609, 38340568, 40886320, 47925710, 54772240, 57240848, 71551060, 72573218, 76681136, 95851420, 143102120, 145146436, 181433045, 191702840, 254006263, 286204240, 290292872, 362866090, 383405680, 508012526, 580585744, 725732180, 1016025052, 1270031315, 1451464360, 2032050104, 2540062630, 2902928720, 4064100208, 5080125260, 10160250520, 20320501040]

約数ペア:

[(1, 20320501040), (2, 10160250520), (4, 5080125260), (5, 4064100208), (7, 2902928720), (8, 2540062630), (10, 2032050104), (14, 1451464360), (16, 1270031315), (20, 1016025052), (28, 725732180), (35, 580585744), (40, 508012526), (53, 383405680), (56, 362866090), (70, 290292872), (71, 286204240), (80, 254006263), (106, 191702840), (112, 181433045), (140, 145146436), (142, 143102120), (212, 95851420), (265, 76681136), (280, 72573218), (284, 71551060), (355, 57240848), (371, 54772240), (424, 47925710), (497, 40886320), (530, 38340568), (560, 36286609), (568, 35775530), (710, 28620424), (742, 27386120), (848, 23962855), (994, 20443160), (1060, 19170284), (1136, 17887765), (1420, 14310212), (1484, 13693060), (1855, 10954448), (1988, 10221580), (2120, 9585142), (2485, 8177264), (2840, 7155106), (2968, 6846530), (3710, 5477224), (3763, 5400080), (3976, 5110790), (4240, 4792571), (4970, 4088632), (5680, 3577553), (5936, 3423265), (7420, 2738612), (7526, 2700040), (7952, 2555395), (9643, 2107280), (9940, 2044316), (14840, 1369306), (15052, 1350020), (18815, 1080016), (19286, 1053640), (19880, 1022158), (26341, 771440), (29680, 684653), (30104, 675010), (37630, 540008), (38572, 526820), (39760, 511079), (48215, 421456), (52682, 385720), (60208, 337505), (67501, 301040), (75260, 270004), (77144, 263410), (96430, 210728), (105364, 192860), (131705, 154288), (135002, 150520)]