20163780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1231}}^1$

素因数の和:1266

約数の個数: 144

約数和(自身を含む): 75339264

約数和(自身を除く): 55175484

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1231, 1260, 1365, 1638, 1820, 2340, 2462, 2730, 3276, 3693, 4095, 4924, 5460, 6155, 7386, 8190, 8617, 11079, 12310, 14772, 16003, 16380, 17234, 18465, 22158, 24620, 25851, 32006, 34468, 36930, 43085, 44316, 48009, 51702, 55395, 64012, 73860, 77553, 80015, 86170, 96018, 103404, 110790, 112021, 129255, 144027, 155106, 160030, 172340, 192036, 221580, 224042, 240045, 258510, 288054, 310212, 320060, 336063, 387765, 448084, 480090, 517020, 560105, 576108, 672126, 720135, 775530, 960180, 1008189, 1120210, 1344252, 1440270, 1551060, 1680315, 2016378, 2240420, 2880540, 3360630, 4032756, 5040945, 6721260, 10081890, 20163780]

約数ペア:

[(1, 20163780), (2, 10081890), (3, 6721260), (4, 5040945), (5, 4032756), (6, 3360630), (7, 2880540), (9, 2240420), (10, 2016378), (12, 1680315), (13, 1551060), (14, 1440270), (15, 1344252), (18, 1120210), (20, 1008189), (21, 960180), (26, 775530), (28, 720135), (30, 672126), (35, 576108), (36, 560105), (39, 517020), (42, 480090), (45, 448084), (52, 387765), (60, 336063), (63, 320060), (65, 310212), (70, 288054), (78, 258510), (84, 240045), (90, 224042), (91, 221580), (105, 192036), (117, 172340), (126, 160030), (130, 155106), (140, 144027), (156, 129255), (180, 112021), (182, 110790), (195, 103404), (210, 96018), (234, 86170), (252, 80015), (260, 77553), (273, 73860), (315, 64012), (364, 55395), (390, 51702), (420, 48009), (455, 44316), (468, 43085), (546, 36930), (585, 34468), (630, 32006), (780, 25851), (819, 24620), (910, 22158), (1092, 18465), (1170, 17234), (1231, 16380), (1260, 16003), (1365, 14772), (1638, 12310), (1820, 11079), (2340, 8617), (2462, 8190), (2730, 7386), (3276, 6155), (3693, 5460), (4095, 4924)]