78889840

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{109}}^2$

素因数の和:314

約数の個数: 60

約数和(自身を含む): 187347384

約数和(自身を除く): 108457544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 109, 166, 218, 332, 415, 436, 545, 664, 830, 872, 1090, 1328, 1660, 1744, 2180, 3320, 4360, 6640, 8720, 9047, 11881, 18094, 23762, 36188, 45235, 47524, 59405, 72376, 90470, 95048, 118810, 144752, 180940, 190096, 237620, 361880, 475240, 723760, 950480, 986123, 1972246, 3944492, 4930615, 7888984, 9861230, 15777968, 19722460, 39444920, 78889840]

約数ペア:

[(1, 78889840), (2, 39444920), (4, 19722460), (5, 15777968), (8, 9861230), (10, 7888984), (16, 4930615), (20, 3944492), (40, 1972246), (80, 986123), (83, 950480), (109, 723760), (166, 475240), (218, 361880), (332, 237620), (415, 190096), (436, 180940), (545, 144752), (664, 118810), (830, 95048), (872, 90470), (1090, 72376), (1328, 59405), (1660, 47524), (1744, 45235), (2180, 36188), (3320, 23762), (4360, 18094), (6640, 11881), (8720, 9047)]