19722460

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{109}}^2$

素因数の和:310

約数の個数: 36

約数和(自身を含む): 42304248

約数和(自身を除く): 22581788

約数列:

[1, 2, 4, 5, 10, 20, 83, 109, 166, 218, 332, 415, 436, 545, 830, 1090, 1660, 2180, 9047, 11881, 18094, 23762, 36188, 45235, 47524, 59405, 90470, 118810, 180940, 237620, 986123, 1972246, 3944492, 4930615, 9861230, 19722460]

約数ペア:

[(1, 19722460), (2, 9861230), (4, 4930615), (5, 3944492), (10, 1972246), (20, 986123), (83, 237620), (109, 180940), (166, 118810), (218, 90470), (332, 59405), (415, 47524), (436, 45235), (545, 36188), (830, 23762), (1090, 18094), (1660, 11881), (2180, 9047)]