66706250

素因数分解:

$2^1\times 5^5\times {\mathrm{13}}^1\times {\mathrm{821}}^1$

素因数の和:861

約数の個数: 48

約数和(自身を含む): 134850744

約数和(自身を除く): 68144494

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 821, 1250, 1625, 1642, 3125, 3250, 4105, 6250, 8125, 8210, 10673, 16250, 20525, 21346, 40625, 41050, 53365, 81250, 102625, 106730, 205250, 266825, 513125, 533650, 1026250, 1334125, 2565625, 2668250, 5131250, 6670625, 13341250, 33353125, 66706250]

約数ペア:

[(1, 66706250), (2, 33353125), (5, 13341250), (10, 6670625), (13, 5131250), (25, 2668250), (26, 2565625), (50, 1334125), (65, 1026250), (125, 533650), (130, 513125), (250, 266825), (325, 205250), (625, 106730), (650, 102625), (821, 81250), (1250, 53365), (1625, 41050), (1642, 40625), (3125, 21346), (3250, 20525), (4105, 16250), (6250, 10673), (8125, 8210)]