390805840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{4259}}^1$

素因数の和:4340

約数の個数: 80

約数和(自身を含む): 963509760

約数和(自身を除く): 572703920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 37, 40, 62, 74, 80, 124, 148, 155, 185, 248, 296, 310, 370, 496, 592, 620, 740, 1147, 1240, 1480, 2294, 2480, 2960, 4259, 4588, 5735, 8518, 9176, 11470, 17036, 18352, 21295, 22940, 34072, 42590, 45880, 68144, 85180, 91760, 132029, 157583, 170360, 264058, 315166, 340720, 528116, 630332, 660145, 787915, 1056232, 1260664, 1320290, 1575830, 2112464, 2521328, 2640580, 3151660, 4885073, 5281160, 6303320, 9770146, 10562320, 12606640, 19540292, 24425365, 39080584, 48850730, 78161168, 97701460, 195402920, 390805840]

約数ペア:

[(1, 390805840), (2, 195402920), (4, 97701460), (5, 78161168), (8, 48850730), (10, 39080584), (16, 24425365), (20, 19540292), (31, 12606640), (37, 10562320), (40, 9770146), (62, 6303320), (74, 5281160), (80, 4885073), (124, 3151660), (148, 2640580), (155, 2521328), (185, 2112464), (248, 1575830), (296, 1320290), (310, 1260664), (370, 1056232), (496, 787915), (592, 660145), (620, 630332), (740, 528116), (1147, 340720), (1240, 315166), (1480, 264058), (2294, 170360), (2480, 157583), (2960, 132029), (4259, 91760), (4588, 85180), (5735, 68144), (8518, 45880), (9176, 42590), (11470, 34072), (17036, 22940), (18352, 21295)]