18253750

素因数分解:

$2^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{859}}^1$

素因数の和:898

約数の個数: 40

約数和(自身を含む): 36269640

約数和(自身を除く): 18015890

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 125, 170, 250, 425, 625, 850, 859, 1250, 1718, 2125, 4250, 4295, 8590, 10625, 14603, 21250, 21475, 29206, 42950, 73015, 107375, 146030, 214750, 365075, 536875, 730150, 1073750, 1825375, 3650750, 9126875, 18253750]

約数ペア:

[(1, 18253750), (2, 9126875), (5, 3650750), (10, 1825375), (17, 1073750), (25, 730150), (34, 536875), (50, 365075), (85, 214750), (125, 146030), (170, 107375), (250, 73015), (425, 42950), (625, 29206), (850, 21475), (859, 21250), (1250, 14603), (1718, 10625), (2125, 8590), (4250, 4295)]