18082640

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:240

約数の個数: 80

約数和(自身を含む): 44528400

約数和(自身を除く): 26445760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 41, 74, 80, 82, 148, 149, 164, 185, 205, 296, 298, 328, 370, 410, 592, 596, 656, 740, 745, 820, 1192, 1480, 1490, 1517, 1640, 2384, 2960, 2980, 3034, 3280, 5513, 5960, 6068, 6109, 7585, 11026, 11920, 12136, 12218, 15170, 22052, 24272, 24436, 27565, 30340, 30545, 44104, 48872, 55130, 60680, 61090, 88208, 97744, 110260, 121360, 122180, 220520, 226033, 244360, 441040, 452066, 488720, 904132, 1130165, 1808264, 2260330, 3616528, 4520660, 9041320, 18082640]

約数ペア:

[(1, 18082640), (2, 9041320), (4, 4520660), (5, 3616528), (8, 2260330), (10, 1808264), (16, 1130165), (20, 904132), (37, 488720), (40, 452066), (41, 441040), (74, 244360), (80, 226033), (82, 220520), (148, 122180), (149, 121360), (164, 110260), (185, 97744), (205, 88208), (296, 61090), (298, 60680), (328, 55130), (370, 48872), (410, 44104), (592, 30545), (596, 30340), (656, 27565), (740, 24436), (745, 24272), (820, 22052), (1192, 15170), (1480, 12218), (1490, 12136), (1517, 11920), (1640, 11026), (2384, 7585), (2960, 6109), (2980, 6068), (3034, 5960), (3280, 5513)]