20873710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1327}}^1$

素因数の和:1369

約数の個数: 48

約数和(自身を含む): 44509248

約数和(自身を除く): 23635538

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 121, 130, 143, 242, 286, 605, 715, 1210, 1327, 1430, 1573, 2654, 3146, 6635, 7865, 13270, 14597, 15730, 17251, 29194, 34502, 72985, 86255, 145970, 160567, 172510, 189761, 321134, 379522, 802835, 948805, 1605670, 1897610, 2087371, 4174742, 10436855, 20873710]

約数ペア:

[(1, 20873710), (2, 10436855), (5, 4174742), (10, 2087371), (11, 1897610), (13, 1605670), (22, 948805), (26, 802835), (55, 379522), (65, 321134), (110, 189761), (121, 172510), (130, 160567), (143, 145970), (242, 86255), (286, 72985), (605, 34502), (715, 29194), (1210, 17251), (1327, 15730), (1430, 14597), (1573, 13270), (2654, 7865), (3146, 6635)]