80555980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{3169}}^1$

素因数の和:3250

約数の個数: 48

約数和(自身を含む): 178940160

約数和(自身を除く): 98384180

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 410, 620, 820, 1271, 2542, 3169, 5084, 6338, 6355, 12676, 12710, 15845, 25420, 31690, 63380, 98239, 129929, 196478, 259858, 392956, 491195, 519716, 649645, 982390, 1299290, 1964780, 2598580, 4027799, 8055598, 16111196, 20138995, 40277990, 80555980]

約数ペア:

[(1, 80555980), (2, 40277990), (4, 20138995), (5, 16111196), (10, 8055598), (20, 4027799), (31, 2598580), (41, 1964780), (62, 1299290), (82, 982390), (124, 649645), (155, 519716), (164, 491195), (205, 392956), (310, 259858), (410, 196478), (620, 129929), (820, 98239), (1271, 63380), (2542, 31690), (3169, 25420), (5084, 15845), (6338, 12710), (6355, 12676)]