291868980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{977}}^1$

素因数の和:1385

約数の個数: 96

約数和(自身を含む): 883298304

約数和(自身を除く): 591429324

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, 383, 390, 766, 780, 977, 1149, 1532, 1915, 1954, 2298, 2931, 3830, 3908, 4596, 4885, 4979, 5745, 5862, 7660, 9770, 9958, 11490, 11724, 12701, 14655, 14937, 19540, 19916, 22980, 24895, 25402, 29310, 29874, 38103, 49790, 50804, 58620, 59748, 63505, 74685, 76206, 99580, 127010, 149370, 152412, 190515, 254020, 298740, 374191, 381030, 748382, 762060, 1122573, 1496764, 1870955, 2245146, 3741910, 4490292, 4864483, 5612865, 7483820, 9728966, 11225730, 14593449, 19457932, 22451460, 24322415, 29186898, 48644830, 58373796, 72967245, 97289660, 145934490, 291868980]

約数ペア:

[(1, 291868980), (2, 145934490), (3, 97289660), (4, 72967245), (5, 58373796), (6, 48644830), (10, 29186898), (12, 24322415), (13, 22451460), (15, 19457932), (20, 14593449), (26, 11225730), (30, 9728966), (39, 7483820), (52, 5612865), (60, 4864483), (65, 4490292), (78, 3741910), (130, 2245146), (156, 1870955), (195, 1496764), (260, 1122573), (383, 762060), (390, 748382), (766, 381030), (780, 374191), (977, 298740), (1149, 254020), (1532, 190515), (1915, 152412), (1954, 149370), (2298, 127010), (2931, 99580), (3830, 76206), (3908, 74685), (4596, 63505), (4885, 59748), (4979, 58620), (5745, 50804), (5862, 49790), (7660, 38103), (9770, 29874), (9958, 29310), (11490, 25402), (11724, 24895), (12701, 22980), (14655, 19916), (14937, 19540)]