8520720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2731}}^1$

素因数の和:2760

約数の個数: 80

約数和(自身を含む): 28456512

約数和(自身を除く): 19935792

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 2731, 3120, 5462, 8193, 10924, 13655, 16386, 21848, 27310, 32772, 35503, 40965, 43696, 54620, 65544, 71006, 81930, 106509, 109240, 131088, 142012, 163860, 177515, 213018, 218480, 284024, 327720, 355030, 426036, 532545, 568048, 655440, 710060, 852072, 1065090, 1420120, 1704144, 2130180, 2840240, 4260360, 8520720]

約数ペア:

[(1, 8520720), (2, 4260360), (3, 2840240), (4, 2130180), (5, 1704144), (6, 1420120), (8, 1065090), (10, 852072), (12, 710060), (13, 655440), (15, 568048), (16, 532545), (20, 426036), (24, 355030), (26, 327720), (30, 284024), (39, 218480), (40, 213018), (48, 177515), (52, 163860), (60, 142012), (65, 131088), (78, 109240), (80, 106509), (104, 81930), (120, 71006), (130, 65544), (156, 54620), (195, 43696), (208, 40965), (240, 35503), (260, 32772), (312, 27310), (390, 21848), (520, 16386), (624, 13655), (780, 10924), (1040, 8193), (1560, 5462), (2731, 3120)]