18450640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:296

約数の個数: 80

約数和(自身を含む): 46903248

約数和(自身を除く): 28452608

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 113, 130, 157, 208, 226, 260, 314, 452, 520, 565, 628, 785, 904, 1040, 1130, 1256, 1469, 1570, 1808, 2041, 2260, 2512, 2938, 3140, 4082, 4520, 5876, 6280, 7345, 8164, 9040, 10205, 11752, 12560, 14690, 16328, 17741, 20410, 23504, 29380, 32656, 35482, 40820, 58760, 70964, 81640, 88705, 117520, 141928, 163280, 177410, 230633, 283856, 354820, 461266, 709640, 922532, 1153165, 1419280, 1845064, 2306330, 3690128, 4612660, 9225320, 18450640]

約数ペア:

[(1, 18450640), (2, 9225320), (4, 4612660), (5, 3690128), (8, 2306330), (10, 1845064), (13, 1419280), (16, 1153165), (20, 922532), (26, 709640), (40, 461266), (52, 354820), (65, 283856), (80, 230633), (104, 177410), (113, 163280), (130, 141928), (157, 117520), (208, 88705), (226, 81640), (260, 70964), (314, 58760), (452, 40820), (520, 35482), (565, 32656), (628, 29380), (785, 23504), (904, 20410), (1040, 17741), (1130, 16328), (1256, 14690), (1469, 12560), (1570, 11752), (1808, 10205), (2041, 9040), (2260, 8164), (2512, 7345), (2938, 6280), (3140, 5876), (4082, 4520)]