311784980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{383}}^1$

素因数の和:537

約数の個数: 96

約数和(自身を含む): 736985088

約数和(自身を除く): 425200108

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 101, 124, 130, 155, 202, 260, 310, 383, 403, 404, 505, 620, 766, 806, 1010, 1313, 1532, 1612, 1915, 2015, 2020, 2626, 3131, 3830, 4030, 4979, 5252, 6262, 6565, 7660, 8060, 9958, 11873, 12524, 13130, 15655, 19916, 23746, 24895, 26260, 31310, 38683, 40703, 47492, 49790, 59365, 62620, 77366, 81406, 99580, 118730, 154349, 154732, 162812, 193415, 203515, 237460, 308698, 386830, 407030, 502879, 617396, 771745, 773660, 814060, 1005758, 1199173, 1543490, 2011516, 2398346, 2514395, 3086980, 4796692, 5028790, 5995865, 10057580, 11991730, 15589249, 23983460, 31178498, 62356996, 77946245, 155892490, 311784980]

約数ペア:

[(1, 311784980), (2, 155892490), (4, 77946245), (5, 62356996), (10, 31178498), (13, 23983460), (20, 15589249), (26, 11991730), (31, 10057580), (52, 5995865), (62, 5028790), (65, 4796692), (101, 3086980), (124, 2514395), (130, 2398346), (155, 2011516), (202, 1543490), (260, 1199173), (310, 1005758), (383, 814060), (403, 773660), (404, 771745), (505, 617396), (620, 502879), (766, 407030), (806, 386830), (1010, 308698), (1313, 237460), (1532, 203515), (1612, 193415), (1915, 162812), (2015, 154732), (2020, 154349), (2626, 118730), (3131, 99580), (3830, 81406), (4030, 77366), (4979, 62620), (5252, 59365), (6262, 49790), (6565, 47492), (7660, 40703), (8060, 38683), (9958, 31310), (11873, 26260), (12524, 24895), (13130, 23746), (15655, 19916)]