20720592

素因数分解:

$2^4\times 3^2\times {\mathrm{37}}^1\times {\mathrm{3889}}^1$

素因数の和:3940

約数の個数: 60

約数和(自身を含む): 59571460

約数和(自身を除く): 38850868

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 37, 48, 72, 74, 111, 144, 148, 222, 296, 333, 444, 592, 666, 888, 1332, 1776, 2664, 3889, 5328, 7778, 11667, 15556, 23334, 31112, 35001, 46668, 62224, 70002, 93336, 140004, 143893, 186672, 280008, 287786, 431679, 560016, 575572, 863358, 1151144, 1295037, 1726716, 2302288, 2590074, 3453432, 5180148, 6906864, 10360296, 20720592]

約数ペア:

[(1, 20720592), (2, 10360296), (3, 6906864), (4, 5180148), (6, 3453432), (8, 2590074), (9, 2302288), (12, 1726716), (16, 1295037), (18, 1151144), (24, 863358), (36, 575572), (37, 560016), (48, 431679), (72, 287786), (74, 280008), (111, 186672), (144, 143893), (148, 140004), (222, 93336), (296, 70002), (333, 62224), (444, 46668), (592, 35001), (666, 31112), (888, 23334), (1332, 15556), (1776, 11667), (2664, 7778), (3889, 5328)]