18450080

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{953}}^1$

素因数の和:990

約数の個数: 72

約数和(自身を含む): 47961396

約数和(自身を除く): 29511316

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 121, 160, 176, 220, 242, 352, 440, 484, 605, 880, 953, 968, 1210, 1760, 1906, 1936, 2420, 3812, 3872, 4765, 4840, 7624, 9530, 9680, 10483, 15248, 19060, 19360, 20966, 30496, 38120, 41932, 52415, 76240, 83864, 104830, 115313, 152480, 167728, 209660, 230626, 335456, 419320, 461252, 576565, 838640, 922504, 1153130, 1677280, 1845008, 2306260, 3690016, 4612520, 9225040, 18450080]

約数ペア:

[(1, 18450080), (2, 9225040), (4, 4612520), (5, 3690016), (8, 2306260), (10, 1845008), (11, 1677280), (16, 1153130), (20, 922504), (22, 838640), (32, 576565), (40, 461252), (44, 419320), (55, 335456), (80, 230626), (88, 209660), (110, 167728), (121, 152480), (160, 115313), (176, 104830), (220, 83864), (242, 76240), (352, 52415), (440, 41932), (484, 38120), (605, 30496), (880, 20966), (953, 19360), (968, 19060), (1210, 15248), (1760, 10483), (1906, 9680), (1936, 9530), (2420, 7624), (3812, 4840), (3872, 4765)]