18025100

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{461}}^1$

素因数の和:515

約数の個数: 72

約数和(自身を含む): 43309728

約数和(自身を除く): 25284628

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 25, 34, 46, 50, 68, 85, 92, 100, 115, 170, 230, 340, 391, 425, 460, 461, 575, 782, 850, 922, 1150, 1564, 1700, 1844, 1955, 2300, 2305, 3910, 4610, 7820, 7837, 9220, 9775, 10603, 11525, 15674, 19550, 21206, 23050, 31348, 39100, 39185, 42412, 46100, 53015, 78370, 106030, 156740, 180251, 195925, 212060, 265075, 360502, 391850, 530150, 721004, 783700, 901255, 1060300, 1802510, 3605020, 4506275, 9012550, 18025100]

約数ペア:

[(1, 18025100), (2, 9012550), (4, 4506275), (5, 3605020), (10, 1802510), (17, 1060300), (20, 901255), (23, 783700), (25, 721004), (34, 530150), (46, 391850), (50, 360502), (68, 265075), (85, 212060), (92, 195925), (100, 180251), (115, 156740), (170, 106030), (230, 78370), (340, 53015), (391, 46100), (425, 42412), (460, 39185), (461, 39100), (575, 31348), (782, 23050), (850, 21206), (922, 19550), (1150, 15674), (1564, 11525), (1700, 10603), (1844, 9775), (1955, 9220), (2300, 7837), (2305, 7820), (3910, 4610)]