25369160

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{499}}^1$

素因数の和:582

約数の個数: 64

約数和(自身を含む): 60480000

約数和(自身を除く): 35110840

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 62, 82, 124, 155, 164, 205, 248, 310, 328, 410, 499, 620, 820, 998, 1240, 1271, 1640, 1996, 2495, 2542, 3992, 4990, 5084, 6355, 9980, 10168, 12710, 15469, 19960, 20459, 25420, 30938, 40918, 50840, 61876, 77345, 81836, 102295, 123752, 154690, 163672, 204590, 309380, 409180, 618760, 634229, 818360, 1268458, 2536916, 3171145, 5073832, 6342290, 12684580, 25369160]

約数ペア:

[(1, 25369160), (2, 12684580), (4, 6342290), (5, 5073832), (8, 3171145), (10, 2536916), (20, 1268458), (31, 818360), (40, 634229), (41, 618760), (62, 409180), (82, 309380), (124, 204590), (155, 163672), (164, 154690), (205, 123752), (248, 102295), (310, 81836), (328, 77345), (410, 61876), (499, 50840), (620, 40918), (820, 30938), (998, 25420), (1240, 20459), (1271, 19960), (1640, 15469), (1996, 12710), (2495, 10168), (2542, 9980), (3992, 6355), (4990, 5084)]