18056720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1$

素因数の和:129

約数の個数: 120

約数和(自身を含む): 49336128

約数和(自身を除く): 31279408

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 71, 80, 85, 88, 110, 136, 142, 170, 176, 187, 220, 272, 284, 289, 340, 355, 374, 440, 568, 578, 680, 710, 748, 781, 880, 935, 1136, 1156, 1207, 1360, 1420, 1445, 1496, 1562, 1870, 2312, 2414, 2840, 2890, 2992, 3124, 3179, 3740, 3905, 4624, 4828, 5680, 5780, 6035, 6248, 6358, 7480, 7810, 9656, 11560, 12070, 12496, 12716, 13277, 14960, 15620, 15895, 19312, 20519, 23120, 24140, 25432, 26554, 31240, 31790, 41038, 48280, 50864, 53108, 62480, 63580, 66385, 82076, 96560, 102595, 106216, 127160, 132770, 164152, 205190, 212432, 225709, 254320, 265540, 328304, 410380, 451418, 531080, 820760, 902836, 1062160, 1128545, 1641520, 1805672, 2257090, 3611344, 4514180, 9028360, 18056720]

約数ペア:

[(1, 18056720), (2, 9028360), (4, 4514180), (5, 3611344), (8, 2257090), (10, 1805672), (11, 1641520), (16, 1128545), (17, 1062160), (20, 902836), (22, 820760), (34, 531080), (40, 451418), (44, 410380), (55, 328304), (68, 265540), (71, 254320), (80, 225709), (85, 212432), (88, 205190), (110, 164152), (136, 132770), (142, 127160), (170, 106216), (176, 102595), (187, 96560), (220, 82076), (272, 66385), (284, 63580), (289, 62480), (340, 53108), (355, 50864), (374, 48280), (440, 41038), (568, 31790), (578, 31240), (680, 26554), (710, 25432), (748, 24140), (781, 23120), (880, 20519), (935, 19312), (1136, 15895), (1156, 15620), (1207, 14960), (1360, 13277), (1420, 12716), (1445, 12496), (1496, 12070), (1562, 11560), (1870, 9656), (2312, 7810), (2414, 7480), (2840, 6358), (2890, 6248), (2992, 6035), (3124, 5780), (3179, 5680), (3740, 4828), (3905, 4624)]