86693980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{2087}}^1$

素因数の和:2194

約数の個数: 48

約数和(自身を含む): 190826496

約数和(自身を除く): 104132516

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 67, 124, 134, 155, 268, 310, 335, 620, 670, 1340, 2077, 2087, 4154, 4174, 8308, 8348, 10385, 10435, 20770, 20870, 41540, 41740, 64697, 129394, 139829, 258788, 279658, 323485, 559316, 646970, 699145, 1293940, 1398290, 2796580, 4334699, 8669398, 17338796, 21673495, 43346990, 86693980]

約数ペア:

[(1, 86693980), (2, 43346990), (4, 21673495), (5, 17338796), (10, 8669398), (20, 4334699), (31, 2796580), (62, 1398290), (67, 1293940), (124, 699145), (134, 646970), (155, 559316), (268, 323485), (310, 279658), (335, 258788), (620, 139829), (670, 129394), (1340, 64697), (2077, 41740), (2087, 41540), (4154, 20870), (4174, 20770), (8308, 10435), (8348, 10385)]