18257760

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:461

約数の個数: 144

約数和(自身を含む): 64471680

約数和(自身を除く): 46213920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 96, 120, 124, 144, 155, 160, 180, 186, 240, 248, 279, 288, 310, 360, 372, 409, 465, 480, 496, 558, 620, 720, 744, 818, 930, 992, 1116, 1227, 1240, 1395, 1440, 1488, 1636, 1860, 2045, 2232, 2454, 2480, 2790, 2976, 3272, 3681, 3720, 4090, 4464, 4908, 4960, 5580, 6135, 6544, 7362, 7440, 8180, 8928, 9816, 11160, 12270, 12679, 13088, 14724, 14880, 16360, 18405, 19632, 22320, 24540, 25358, 29448, 32720, 36810, 38037, 39264, 44640, 49080, 50716, 58896, 63395, 65440, 73620, 76074, 98160, 101432, 114111, 117792, 126790, 147240, 152148, 190185, 196320, 202864, 228222, 253580, 294480, 304296, 380370, 405728, 456444, 507160, 570555, 588960, 608592, 760740, 912888, 1014320, 1141110, 1217184, 1521480, 1825776, 2028640, 2282220, 3042960, 3651552, 4564440, 6085920, 9128880, 18257760]

約数ペア:

[(1, 18257760), (2, 9128880), (3, 6085920), (4, 4564440), (5, 3651552), (6, 3042960), (8, 2282220), (9, 2028640), (10, 1825776), (12, 1521480), (15, 1217184), (16, 1141110), (18, 1014320), (20, 912888), (24, 760740), (30, 608592), (31, 588960), (32, 570555), (36, 507160), (40, 456444), (45, 405728), (48, 380370), (60, 304296), (62, 294480), (72, 253580), (80, 228222), (90, 202864), (93, 196320), (96, 190185), (120, 152148), (124, 147240), (144, 126790), (155, 117792), (160, 114111), (180, 101432), (186, 98160), (240, 76074), (248, 73620), (279, 65440), (288, 63395), (310, 58896), (360, 50716), (372, 49080), (409, 44640), (465, 39264), (480, 38037), (496, 36810), (558, 32720), (620, 29448), (720, 25358), (744, 24540), (818, 22320), (930, 19632), (992, 18405), (1116, 16360), (1227, 14880), (1240, 14724), (1395, 13088), (1440, 12679), (1488, 12270), (1636, 11160), (1860, 9816), (2045, 8928), (2232, 8180), (2454, 7440), (2480, 7362), (2790, 6544), (2976, 6135), (3272, 5580), (3681, 4960), (3720, 4908), (4090, 4464)]