4891900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:151

約数の個数: 72

約数和(自身を含む): 11811744

約数和(自身を除く): 6919844

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 53, 65, 71, 100, 106, 130, 142, 212, 260, 265, 284, 325, 355, 530, 650, 689, 710, 923, 1060, 1300, 1325, 1378, 1420, 1775, 1846, 2650, 2756, 3445, 3550, 3692, 3763, 4615, 5300, 6890, 7100, 7526, 9230, 13780, 15052, 17225, 18460, 18815, 23075, 34450, 37630, 46150, 48919, 68900, 75260, 92300, 94075, 97838, 188150, 195676, 244595, 376300, 489190, 978380, 1222975, 2445950, 4891900]

約数ペア:

[(1, 4891900), (2, 2445950), (4, 1222975), (5, 978380), (10, 489190), (13, 376300), (20, 244595), (25, 195676), (26, 188150), (50, 97838), (52, 94075), (53, 92300), (65, 75260), (71, 68900), (100, 48919), (106, 46150), (130, 37630), (142, 34450), (212, 23075), (260, 18815), (265, 18460), (284, 17225), (325, 15052), (355, 13780), (530, 9230), (650, 7526), (689, 7100), (710, 6890), (923, 5300), (1060, 4615), (1300, 3763), (1325, 3692), (1378, 3550), (1420, 3445), (1775, 2756), (1846, 2650)]