2107689980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{121271}}^1$

素因数の和:121370

約数の個数: 48

約数和(自身を含む): 4889687040

約数和(自身を除く): 2781997060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1580, 1738, 3476, 4345, 8690, 17380, 121271, 242542, 485084, 606355, 1212710, 1333981, 2425420, 2667962, 5335924, 6669905, 9580409, 13339810, 19160818, 26679620, 38321636, 47902045, 95804090, 105384499, 191608180, 210768998, 421537996, 526922495, 1053844990, 2107689980]

約数ペア:

[(1, 2107689980), (2, 1053844990), (4, 526922495), (5, 421537996), (10, 210768998), (11, 191608180), (20, 105384499), (22, 95804090), (44, 47902045), (55, 38321636), (79, 26679620), (110, 19160818), (158, 13339810), (220, 9580409), (316, 6669905), (395, 5335924), (790, 2667962), (869, 2425420), (1580, 1333981), (1738, 1212710), (3476, 606355), (4345, 485084), (8690, 242542), (17380, 121271)]