18185240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{569}}^1$

素因数の和:644

約数の個数: 64

約数和(自身を含む): 44323200

約数和(自身を除く): 26137960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 136, 170, 188, 235, 340, 376, 470, 569, 680, 799, 940, 1138, 1598, 1880, 2276, 2845, 3196, 3995, 4552, 5690, 6392, 7990, 9673, 11380, 15980, 19346, 22760, 26743, 31960, 38692, 48365, 53486, 77384, 96730, 106972, 133715, 193460, 213944, 267430, 386920, 454631, 534860, 909262, 1069720, 1818524, 2273155, 3637048, 4546310, 9092620, 18185240]

約数ペア:

[(1, 18185240), (2, 9092620), (4, 4546310), (5, 3637048), (8, 2273155), (10, 1818524), (17, 1069720), (20, 909262), (34, 534860), (40, 454631), (47, 386920), (68, 267430), (85, 213944), (94, 193460), (136, 133715), (170, 106972), (188, 96730), (235, 77384), (340, 53486), (376, 48365), (470, 38692), (569, 31960), (680, 26743), (799, 22760), (940, 19346), (1138, 15980), (1598, 11380), (1880, 9673), (2276, 7990), (2845, 6392), (3196, 5690), (3995, 4552)]