18408240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{691}}^1$

素因数の和:747

約数の個数: 120

約数和(自身を含む): 63583728

約数和(自身を除く): 45175488

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 37, 40, 45, 48, 60, 72, 74, 80, 90, 111, 120, 144, 148, 180, 185, 222, 240, 296, 333, 360, 370, 444, 555, 592, 666, 691, 720, 740, 888, 1110, 1332, 1382, 1480, 1665, 1776, 2073, 2220, 2664, 2764, 2960, 3330, 3455, 4146, 4440, 5328, 5528, 6219, 6660, 6910, 8292, 8880, 10365, 11056, 12438, 13320, 13820, 16584, 20730, 24876, 25567, 26640, 27640, 31095, 33168, 41460, 49752, 51134, 55280, 62190, 76701, 82920, 99504, 102268, 124380, 127835, 153402, 165840, 204536, 230103, 248760, 255670, 306804, 383505, 409072, 460206, 497520, 511340, 613608, 767010, 920412, 1022680, 1150515, 1227216, 1534020, 1840824, 2045360, 2301030, 3068040, 3681648, 4602060, 6136080, 9204120, 18408240]

約数ペア:

[(1, 18408240), (2, 9204120), (3, 6136080), (4, 4602060), (5, 3681648), (6, 3068040), (8, 2301030), (9, 2045360), (10, 1840824), (12, 1534020), (15, 1227216), (16, 1150515), (18, 1022680), (20, 920412), (24, 767010), (30, 613608), (36, 511340), (37, 497520), (40, 460206), (45, 409072), (48, 383505), (60, 306804), (72, 255670), (74, 248760), (80, 230103), (90, 204536), (111, 165840), (120, 153402), (144, 127835), (148, 124380), (180, 102268), (185, 99504), (222, 82920), (240, 76701), (296, 62190), (333, 55280), (360, 51134), (370, 49752), (444, 41460), (555, 33168), (592, 31095), (666, 27640), (691, 26640), (720, 25567), (740, 24876), (888, 20730), (1110, 16584), (1332, 13820), (1382, 13320), (1480, 12438), (1665, 11056), (1776, 10365), (2073, 8880), (2220, 8292), (2664, 6910), (2764, 6660), (2960, 6219), (3330, 5528), (3455, 5328), (4146, 4440)]