28205060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1307}}^1$

素因数の和:1412

約数の個数: 48

約数和(自身を含む): 64604736

約数和(自身を除く): 36399676

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 83, 130, 166, 260, 332, 415, 830, 1079, 1307, 1660, 2158, 2614, 4316, 5228, 5395, 6535, 10790, 13070, 16991, 21580, 26140, 33982, 67964, 84955, 108481, 169910, 216962, 339820, 433924, 542405, 1084810, 1410253, 2169620, 2820506, 5641012, 7051265, 14102530, 28205060]

約数ペア:

[(1, 28205060), (2, 14102530), (4, 7051265), (5, 5641012), (10, 2820506), (13, 2169620), (20, 1410253), (26, 1084810), (52, 542405), (65, 433924), (83, 339820), (130, 216962), (166, 169910), (260, 108481), (332, 84955), (415, 67964), (830, 33982), (1079, 26140), (1307, 21580), (1660, 16991), (2158, 13070), (2614, 10790), (4316, 6535), (5228, 5395)]