718693460

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1\times {\mathrm{613}}^1$

素因数の和:745

約数の個数: 72

約数和(自身を含む): 1587664008

約数和(自身を除く): 868970548

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 122, 124, 155, 244, 305, 310, 610, 613, 620, 961, 1220, 1226, 1891, 1922, 2452, 3065, 3782, 3844, 4805, 6130, 7564, 9455, 9610, 12260, 18910, 19003, 19220, 37393, 37820, 38006, 58621, 74786, 76012, 95015, 117242, 149572, 186965, 190030, 234484, 293105, 373930, 380060, 586210, 589093, 747860, 1159183, 1172420, 1178186, 2318366, 2356372, 2945465, 4636732, 5795915, 5890930, 11591830, 11781860, 23183660, 35934673, 71869346, 143738692, 179673365, 359346730, 718693460]

約数ペア:

[(1, 718693460), (2, 359346730), (4, 179673365), (5, 143738692), (10, 71869346), (20, 35934673), (31, 23183660), (61, 11781860), (62, 11591830), (122, 5890930), (124, 5795915), (155, 4636732), (244, 2945465), (305, 2356372), (310, 2318366), (610, 1178186), (613, 1172420), (620, 1159183), (961, 747860), (1220, 589093), (1226, 586210), (1891, 380060), (1922, 373930), (2452, 293105), (3065, 234484), (3782, 190030), (3844, 186965), (4805, 149572), (6130, 117242), (7564, 95015), (9455, 76012), (9610, 74786), (12260, 58621), (18910, 38006), (19003, 37820), (19220, 37393)]