61920920

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{15959}}^1$

素因数の和:16067

約数の個数: 32

約数和(自身を含む): 140767200

約数和(自身を除く): 78846280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 15959, 31918, 63836, 79795, 127672, 159590, 319180, 638360, 1548023, 3096046, 6192092, 7740115, 12384184, 15480230, 30960460, 61920920]

約数ペア:

[(1, 61920920), (2, 30960460), (4, 15480230), (5, 12384184), (8, 7740115), (10, 6192092), (20, 3096046), (40, 1548023), (97, 638360), (194, 319180), (388, 159590), (485, 127672), (776, 79795), (970, 63836), (1940, 31918), (3880, 15959)]