19879480

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{3049}}^1$

素因数の和:3223

約数の個数: 32

約数和(自身を含む): 45018000

約数和(自身を除く): 25138520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3049, 3260, 6098, 6520, 12196, 15245, 24392, 30490, 60980, 121960, 496987, 993974, 1987948, 2484935, 3975896, 4969870, 9939740, 19879480]

約数ペア:

[(1, 19879480), (2, 9939740), (4, 4969870), (5, 3975896), (8, 2484935), (10, 1987948), (20, 993974), (40, 496987), (163, 121960), (326, 60980), (652, 30490), (815, 24392), (1304, 15245), (1630, 12196), (3049, 6520), (3260, 6098)]