77128580

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1\times {\mathrm{479}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 165957120

約数和(自身を除く): 88828540

約数列:

[1, 2, 4, 5, 10, 20, 83, 97, 166, 194, 332, 388, 415, 479, 485, 830, 958, 970, 1660, 1916, 1940, 2395, 4790, 8051, 9580, 16102, 32204, 39757, 40255, 46463, 79514, 80510, 92926, 159028, 161020, 185852, 198785, 232315, 397570, 464630, 795140, 929260, 3856429, 7712858, 15425716, 19282145, 38564290, 77128580]

約数ペア:

[(1, 77128580), (2, 38564290), (4, 19282145), (5, 15425716), (10, 7712858), (20, 3856429), (83, 929260), (97, 795140), (166, 464630), (194, 397570), (332, 232315), (388, 198785), (415, 185852), (479, 161020), (485, 159028), (830, 92926), (958, 80510), (970, 79514), (1660, 46463), (1916, 40255), (1940, 39757), (2395, 32204), (4790, 16102), (8051, 9580)]