138741960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{499}}^1$

素因数の和:851

約数の個数: 128

約数和(自身を含む): 478080000

約数和(自身を除く): 339338040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 331, 420, 499, 662, 840, 993, 998, 1324, 1497, 1655, 1986, 1996, 2317, 2495, 2648, 2994, 3310, 3493, 3972, 3992, 4634, 4965, 4990, 5988, 6620, 6951, 6986, 7485, 7944, 9268, 9930, 9980, 10479, 11585, 11976, 13240, 13902, 13972, 14970, 17465, 18536, 19860, 19960, 20958, 23170, 27804, 27944, 29940, 34755, 34930, 39720, 41916, 46340, 52395, 55608, 59880, 69510, 69860, 83832, 92680, 104790, 139020, 139720, 165169, 209580, 278040, 330338, 419160, 495507, 660676, 825845, 991014, 1156183, 1321352, 1651690, 1982028, 2312366, 2477535, 3303380, 3468549, 3964056, 4624732, 4955070, 5780915, 6606760, 6937098, 9249464, 9910140, 11561830, 13874196, 17342745, 19820280, 23123660, 27748392, 34685490, 46247320, 69370980, 138741960]

約数ペア:

[(1, 138741960), (2, 69370980), (3, 46247320), (4, 34685490), (5, 27748392), (6, 23123660), (7, 19820280), (8, 17342745), (10, 13874196), (12, 11561830), (14, 9910140), (15, 9249464), (20, 6937098), (21, 6606760), (24, 5780915), (28, 4955070), (30, 4624732), (35, 3964056), (40, 3468549), (42, 3303380), (56, 2477535), (60, 2312366), (70, 1982028), (84, 1651690), (105, 1321352), (120, 1156183), (140, 991014), (168, 825845), (210, 660676), (280, 495507), (331, 419160), (420, 330338), (499, 278040), (662, 209580), (840, 165169), (993, 139720), (998, 139020), (1324, 104790), (1497, 92680), (1655, 83832), (1986, 69860), (1996, 69510), (2317, 59880), (2495, 55608), (2648, 52395), (2994, 46340), (3310, 41916), (3493, 39720), (3972, 34930), (3992, 34755), (4634, 29940), (4965, 27944), (4990, 27804), (5988, 23170), (6620, 20958), (6951, 19960), (6986, 19860), (7485, 18536), (7944, 17465), (9268, 14970), (9930, 13972), (9980, 13902), (10479, 13240), (11585, 11976)]