318620920

素因数分解:

$2^3\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{7817}}^1$

素因数の和:8847

約数の個数: 32

約数和(自身を含む): 717692400

約数和(自身を除く): 399071480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1019, 2038, 4076, 5095, 7817, 8152, 10190, 15634, 20380, 31268, 39085, 40760, 62536, 78170, 156340, 312680, 7965523, 15931046, 31862092, 39827615, 63724184, 79655230, 159310460, 318620920]

約数ペア:

[(1, 318620920), (2, 159310460), (4, 79655230), (5, 63724184), (8, 39827615), (10, 31862092), (20, 15931046), (40, 7965523), (1019, 312680), (2038, 156340), (4076, 78170), (5095, 62536), (7817, 40760), (8152, 39085), (10190, 31268), (15634, 20380)]