19791525

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{383}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 35997696

約数和(自身を除く): 16206171

約数列:

[1, 3, 5, 13, 15, 25, 39, 53, 65, 75, 159, 195, 265, 325, 383, 689, 795, 975, 1149, 1325, 1915, 2067, 3445, 3975, 4979, 5745, 9575, 10335, 14937, 17225, 20299, 24895, 28725, 51675, 60897, 74685, 101495, 124475, 263887, 304485, 373425, 507475, 791661, 1319435, 1522425, 3958305, 6597175, 19791525]

約数ペア:

[(1, 19791525), (3, 6597175), (5, 3958305), (13, 1522425), (15, 1319435), (25, 791661), (39, 507475), (53, 373425), (65, 304485), (75, 263887), (159, 124475), (195, 101495), (265, 74685), (325, 60897), (383, 51675), (689, 28725), (795, 24895), (975, 20299), (1149, 17225), (1325, 14937), (1915, 10335), (2067, 9575), (3445, 5745), (3975, 4979)]