18518440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{241}}^1$

素因数の和:382

約数の個数: 64

約数和(自身を含む): 44692560

約数和(自身を除く): 26174120

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 113, 136, 170, 226, 241, 340, 452, 482, 565, 680, 904, 964, 1130, 1205, 1921, 1928, 2260, 2410, 3842, 4097, 4520, 4820, 7684, 8194, 9605, 9640, 15368, 16388, 19210, 20485, 27233, 32776, 38420, 40970, 54466, 76840, 81940, 108932, 136165, 163880, 217864, 272330, 462961, 544660, 925922, 1089320, 1851844, 2314805, 3703688, 4629610, 9259220, 18518440]

約数ペア:

[(1, 18518440), (2, 9259220), (4, 4629610), (5, 3703688), (8, 2314805), (10, 1851844), (17, 1089320), (20, 925922), (34, 544660), (40, 462961), (68, 272330), (85, 217864), (113, 163880), (136, 136165), (170, 108932), (226, 81940), (241, 76840), (340, 54466), (452, 40970), (482, 38420), (565, 32776), (680, 27233), (904, 20485), (964, 19210), (1130, 16388), (1205, 15368), (1921, 9640), (1928, 9605), (2260, 8194), (2410, 7684), (3842, 4820), (4097, 4520)]