18695750

素因数分解:

$2^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:170

約数の個数: 64

約数和(自身を含む): 38211264

約数和(自身を除く): 19515514

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 53, 83, 85, 106, 125, 166, 170, 250, 265, 415, 425, 530, 830, 850, 901, 1325, 1411, 1802, 2075, 2125, 2650, 2822, 4150, 4250, 4399, 4505, 6625, 7055, 8798, 9010, 10375, 13250, 14110, 20750, 21995, 22525, 35275, 43990, 45050, 70550, 74783, 109975, 112625, 149566, 176375, 219950, 225250, 352750, 373915, 549875, 747830, 1099750, 1869575, 3739150, 9347875, 18695750]

約数ペア:

[(1, 18695750), (2, 9347875), (5, 3739150), (10, 1869575), (17, 1099750), (25, 747830), (34, 549875), (50, 373915), (53, 352750), (83, 225250), (85, 219950), (106, 176375), (125, 149566), (166, 112625), (170, 109975), (250, 74783), (265, 70550), (415, 45050), (425, 43990), (530, 35275), (830, 22525), (850, 21995), (901, 20750), (1325, 14110), (1411, 13250), (1802, 10375), (2075, 9010), (2125, 8798), (2650, 7055), (2822, 6625), (4150, 4505), (4250, 4399)]