990599960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{2357}}^1$

素因数の和:2473

約数の個数: 128

約数和(自身を含む): 2716416000

約数和(自身を除く): 1725816040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 79, 95, 133, 140, 152, 158, 190, 266, 280, 316, 380, 395, 532, 553, 632, 665, 760, 790, 1064, 1106, 1330, 1501, 1580, 2212, 2357, 2660, 2765, 3002, 3160, 4424, 4714, 5320, 5530, 6004, 7505, 9428, 10507, 11060, 11785, 12008, 15010, 16499, 18856, 21014, 22120, 23570, 30020, 32998, 42028, 44783, 47140, 52535, 60040, 65996, 82495, 84056, 89566, 94280, 105070, 131992, 164990, 179132, 186203, 210140, 223915, 313481, 329980, 358264, 372406, 420280, 447830, 626962, 659960, 744812, 895660, 931015, 1253924, 1303421, 1489624, 1567405, 1791320, 1862030, 2507848, 2606842, 3134810, 3537857, 3724060, 5213684, 6269620, 6517105, 7075714, 7448120, 10427368, 12539240, 13034210, 14151428, 17689285, 24764999, 26068420, 28302856, 35378570, 49529998, 52136840, 70757140, 99059996, 123824995, 141514280, 198119992, 247649990, 495299980, 990599960]

約数ペア:

[(1, 990599960), (2, 495299980), (4, 247649990), (5, 198119992), (7, 141514280), (8, 123824995), (10, 99059996), (14, 70757140), (19, 52136840), (20, 49529998), (28, 35378570), (35, 28302856), (38, 26068420), (40, 24764999), (56, 17689285), (70, 14151428), (76, 13034210), (79, 12539240), (95, 10427368), (133, 7448120), (140, 7075714), (152, 6517105), (158, 6269620), (190, 5213684), (266, 3724060), (280, 3537857), (316, 3134810), (380, 2606842), (395, 2507848), (532, 1862030), (553, 1791320), (632, 1567405), (665, 1489624), (760, 1303421), (790, 1253924), (1064, 931015), (1106, 895660), (1330, 744812), (1501, 659960), (1580, 626962), (2212, 447830), (2357, 420280), (2660, 372406), (2765, 358264), (3002, 329980), (3160, 313481), (4424, 223915), (4714, 210140), (5320, 186203), (5530, 179132), (6004, 164990), (7505, 131992), (9428, 105070), (10507, 94280), (11060, 89566), (11785, 84056), (12008, 82495), (15010, 65996), (16499, 60040), (18856, 52535), (21014, 47140), (22120, 44783), (23570, 42028), (30020, 32998)]