61687640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:225

約数の個数: 128

約数和(自身を含む): 167961600

約数和(自身を除く): 106273960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 71, 107, 116, 140, 142, 145, 203, 214, 232, 280, 284, 290, 355, 406, 428, 497, 535, 568, 580, 710, 749, 812, 856, 994, 1015, 1070, 1160, 1420, 1498, 1624, 1988, 2030, 2059, 2140, 2485, 2840, 2996, 3103, 3745, 3976, 4060, 4118, 4280, 4970, 5992, 6206, 7490, 7597, 8120, 8236, 9940, 10295, 12412, 14413, 14980, 15194, 15515, 16472, 19880, 20590, 21721, 24824, 28826, 29960, 30388, 31030, 37985, 41180, 43442, 53179, 57652, 60776, 62060, 72065, 75970, 82360, 86884, 106358, 108605, 115304, 124120, 144130, 151940, 173768, 212716, 217210, 220313, 265895, 288260, 303880, 425432, 434420, 440626, 531790, 576520, 868840, 881252, 1063580, 1101565, 1542191, 1762504, 2127160, 2203130, 3084382, 4406260, 6168764, 7710955, 8812520, 12337528, 15421910, 30843820, 61687640]

約数ペア:

[(1, 61687640), (2, 30843820), (4, 15421910), (5, 12337528), (7, 8812520), (8, 7710955), (10, 6168764), (14, 4406260), (20, 3084382), (28, 2203130), (29, 2127160), (35, 1762504), (40, 1542191), (56, 1101565), (58, 1063580), (70, 881252), (71, 868840), (107, 576520), (116, 531790), (140, 440626), (142, 434420), (145, 425432), (203, 303880), (214, 288260), (232, 265895), (280, 220313), (284, 217210), (290, 212716), (355, 173768), (406, 151940), (428, 144130), (497, 124120), (535, 115304), (568, 108605), (580, 106358), (710, 86884), (749, 82360), (812, 75970), (856, 72065), (994, 62060), (1015, 60776), (1070, 57652), (1160, 53179), (1420, 43442), (1498, 41180), (1624, 37985), (1988, 31030), (2030, 30388), (2059, 29960), (2140, 28826), (2485, 24824), (2840, 21721), (2996, 20590), (3103, 19880), (3745, 16472), (3976, 15515), (4060, 15194), (4118, 14980), (4280, 14413), (4970, 12412), (5992, 10295), (6206, 9940), (7490, 8236), (7597, 8120)]