31511220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{569}}^1$

素因数の和:665

約数の個数: 96

約数和(自身を含む): 96526080

約数和(自身を除く): 65014860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 71, 78, 130, 142, 156, 195, 213, 260, 284, 355, 390, 426, 569, 710, 780, 852, 923, 1065, 1138, 1420, 1707, 1846, 2130, 2276, 2769, 2845, 3414, 3692, 4260, 4615, 5538, 5690, 6828, 7397, 8535, 9230, 11076, 11380, 13845, 14794, 17070, 18460, 22191, 27690, 29588, 34140, 36985, 40399, 44382, 55380, 73970, 80798, 88764, 110955, 121197, 147940, 161596, 201995, 221910, 242394, 403990, 443820, 484788, 525187, 605985, 807980, 1050374, 1211970, 1575561, 2100748, 2423940, 2625935, 3151122, 5251870, 6302244, 7877805, 10503740, 15755610, 31511220]

約数ペア:

[(1, 31511220), (2, 15755610), (3, 10503740), (4, 7877805), (5, 6302244), (6, 5251870), (10, 3151122), (12, 2625935), (13, 2423940), (15, 2100748), (20, 1575561), (26, 1211970), (30, 1050374), (39, 807980), (52, 605985), (60, 525187), (65, 484788), (71, 443820), (78, 403990), (130, 242394), (142, 221910), (156, 201995), (195, 161596), (213, 147940), (260, 121197), (284, 110955), (355, 88764), (390, 80798), (426, 73970), (569, 55380), (710, 44382), (780, 40399), (852, 36985), (923, 34140), (1065, 29588), (1138, 27690), (1420, 22191), (1707, 18460), (1846, 17070), (2130, 14794), (2276, 13845), (2769, 11380), (2845, 11076), (3414, 9230), (3692, 8535), (4260, 7397), (4615, 6828), (5538, 5690)]