218981520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{9811}}^1$

素因数の和:9861

約数の個数: 120

約数和(自身を含む): 759213312

約数和(自身を除く): 540231792

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 120, 124, 144, 155, 180, 186, 240, 248, 279, 310, 360, 372, 465, 496, 558, 620, 720, 744, 930, 1116, 1240, 1395, 1488, 1860, 2232, 2480, 2790, 3720, 4464, 5580, 7440, 9811, 11160, 19622, 22320, 29433, 39244, 49055, 58866, 78488, 88299, 98110, 117732, 147165, 156976, 176598, 196220, 235464, 294330, 304141, 353196, 392440, 441495, 470928, 588660, 608282, 706392, 784880, 882990, 912423, 1177320, 1216564, 1412784, 1520705, 1765980, 1824846, 2354640, 2433128, 2737269, 3041410, 3531960, 3649692, 4562115, 4866256, 5474538, 6082820, 7063920, 7299384, 9124230, 10949076, 12165640, 13686345, 14598768, 18248460, 21898152, 24331280, 27372690, 36496920, 43796304, 54745380, 72993840, 109490760, 218981520]

約数ペア:

[(1, 218981520), (2, 109490760), (3, 72993840), (4, 54745380), (5, 43796304), (6, 36496920), (8, 27372690), (9, 24331280), (10, 21898152), (12, 18248460), (15, 14598768), (16, 13686345), (18, 12165640), (20, 10949076), (24, 9124230), (30, 7299384), (31, 7063920), (36, 6082820), (40, 5474538), (45, 4866256), (48, 4562115), (60, 3649692), (62, 3531960), (72, 3041410), (80, 2737269), (90, 2433128), (93, 2354640), (120, 1824846), (124, 1765980), (144, 1520705), (155, 1412784), (180, 1216564), (186, 1177320), (240, 912423), (248, 882990), (279, 784880), (310, 706392), (360, 608282), (372, 588660), (465, 470928), (496, 441495), (558, 392440), (620, 353196), (720, 304141), (744, 294330), (930, 235464), (1116, 196220), (1240, 176598), (1395, 156976), (1488, 147165), (1860, 117732), (2232, 98110), (2480, 88299), (2790, 78488), (3720, 58866), (4464, 49055), (5580, 39244), (7440, 29433), (9811, 22320), (11160, 19622)]