879473720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{661}}^1$

素因数の和:769

約数の個数: 128

約数和(自身を含む): 2173478400

約数和(自身を除く): 1294004680

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 37, 40, 58, 62, 74, 116, 124, 145, 148, 155, 185, 232, 248, 290, 296, 310, 370, 580, 620, 661, 740, 899, 1073, 1147, 1160, 1240, 1322, 1480, 1798, 2146, 2294, 2644, 3305, 3596, 4292, 4495, 4588, 5288, 5365, 5735, 6610, 7192, 8584, 8990, 9176, 10730, 11470, 13220, 17980, 19169, 20491, 21460, 22940, 24457, 26440, 33263, 35960, 38338, 40982, 42920, 45880, 48914, 66526, 76676, 81964, 95845, 97828, 102455, 122285, 133052, 153352, 163928, 166315, 191690, 195656, 204910, 244570, 266104, 332630, 383380, 409820, 489140, 594239, 665260, 709253, 758167, 766760, 819640, 978280, 1188478, 1330520, 1418506, 1516334, 2376956, 2837012, 2971195, 3032668, 3546265, 3790835, 4753912, 5674024, 5942390, 6065336, 7092530, 7581670, 11884780, 14185060, 15163340, 21986843, 23769560, 28370120, 30326680, 43973686, 87947372, 109934215, 175894744, 219868430, 439736860, 879473720]

約数ペア:

[(1, 879473720), (2, 439736860), (4, 219868430), (5, 175894744), (8, 109934215), (10, 87947372), (20, 43973686), (29, 30326680), (31, 28370120), (37, 23769560), (40, 21986843), (58, 15163340), (62, 14185060), (74, 11884780), (116, 7581670), (124, 7092530), (145, 6065336), (148, 5942390), (155, 5674024), (185, 4753912), (232, 3790835), (248, 3546265), (290, 3032668), (296, 2971195), (310, 2837012), (370, 2376956), (580, 1516334), (620, 1418506), (661, 1330520), (740, 1188478), (899, 978280), (1073, 819640), (1147, 766760), (1160, 758167), (1240, 709253), (1322, 665260), (1480, 594239), (1798, 489140), (2146, 409820), (2294, 383380), (2644, 332630), (3305, 266104), (3596, 244570), (4292, 204910), (4495, 195656), (4588, 191690), (5288, 166315), (5365, 163928), (5735, 153352), (6610, 133052), (7192, 122285), (8584, 102455), (8990, 97828), (9176, 95845), (10730, 81964), (11470, 76676), (13220, 66526), (17980, 48914), (19169, 45880), (20491, 42920), (21460, 40982), (22940, 38338), (24457, 35960), (26440, 33263)]