18125440

素因数分解:

$2^7\times 5^1\times {\mathrm{127}}^1\times {\mathrm{223}}^1$

素因数の和:369

約数の個数: 64

約数和(自身を含む): 43868160

約数和(自身を除く): 25742720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 223, 254, 320, 446, 508, 635, 640, 892, 1016, 1115, 1270, 1784, 2032, 2230, 2540, 3568, 4064, 4460, 5080, 7136, 8128, 8920, 10160, 14272, 16256, 17840, 20320, 28321, 28544, 35680, 40640, 56642, 71360, 81280, 113284, 141605, 142720, 226568, 283210, 453136, 566420, 906272, 1132840, 1812544, 2265680, 3625088, 4531360, 9062720, 18125440]

約数ペア:

[(1, 18125440), (2, 9062720), (4, 4531360), (5, 3625088), (8, 2265680), (10, 1812544), (16, 1132840), (20, 906272), (32, 566420), (40, 453136), (64, 283210), (80, 226568), (127, 142720), (128, 141605), (160, 113284), (223, 81280), (254, 71360), (320, 56642), (446, 40640), (508, 35680), (635, 28544), (640, 28321), (892, 20320), (1016, 17840), (1115, 16256), (1270, 14272), (1784, 10160), (2032, 8920), (2230, 8128), (2540, 7136), (3568, 5080), (4064, 4460)]