2130180

素因数分解:

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

素因数の和:2756

約数の個数: 48

約数和(自身を含む): 6425664

約数和(自身を除く): 4295484

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 2731, 5462, 8193, 10924, 13655, 16386, 27310, 32772, 35503, 40965, 54620, 71006, 81930, 106509, 142012, 163860, 177515, 213018, 355030, 426036, 532545, 710060, 1065090, 2130180]

約数ペア:

[(1, 2130180), (2, 1065090), (3, 710060), (4, 532545), (5, 426036), (6, 355030), (10, 213018), (12, 177515), (13, 163860), (15, 142012), (20, 106509), (26, 81930), (30, 71006), (39, 54620), (52, 40965), (60, 35503), (65, 32772), (78, 27310), (130, 16386), (156, 13655), (195, 10924), (260, 8193), (390, 5462), (780, 2731)]