39444920

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{109}}^2$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 90651960

約数和(自身を除く): 51207040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 109, 166, 218, 332, 415, 436, 545, 664, 830, 872, 1090, 1660, 2180, 3320, 4360, 9047, 11881, 18094, 23762, 36188, 45235, 47524, 59405, 72376, 90470, 95048, 118810, 180940, 237620, 361880, 475240, 986123, 1972246, 3944492, 4930615, 7888984, 9861230, 19722460, 39444920]

約数ペア:

[(1, 39444920), (2, 19722460), (4, 9861230), (5, 7888984), (8, 4930615), (10, 3944492), (20, 1972246), (40, 986123), (83, 475240), (109, 361880), (166, 237620), (218, 180940), (332, 118810), (415, 95048), (436, 90470), (545, 72376), (664, 59405), (830, 47524), (872, 45235), (1090, 36188), (1660, 23762), (2180, 18094), (3320, 11881), (4360, 9047)]