718580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:120

約数の個数: 48

約数和(自身を含む): 1666560

約数和(自身を除く): 947980

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 61, 62, 76, 95, 122, 124, 155, 190, 244, 305, 310, 380, 589, 610, 620, 1159, 1178, 1220, 1891, 2318, 2356, 2945, 3782, 4636, 5795, 5890, 7564, 9455, 11590, 11780, 18910, 23180, 35929, 37820, 71858, 143716, 179645, 359290, 718580]

約数ペア:

[(1, 718580), (2, 359290), (4, 179645), (5, 143716), (10, 71858), (19, 37820), (20, 35929), (31, 23180), (38, 18910), (61, 11780), (62, 11590), (76, 9455), (95, 7564), (122, 5890), (124, 5795), (155, 4636), (190, 3782), (244, 2945), (305, 2356), (310, 2318), (380, 1891), (589, 1220), (610, 1178), (620, 1159)]