18154240

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1091}}^1$

素因数の和:1125

約数の個数: 72

約数和(自身を含む): 46873008

約数和(自身を除く): 28718768

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1091, 1280, 1664, 2080, 2182, 3328, 4160, 4364, 5455, 8320, 8728, 10910, 14183, 16640, 17456, 21820, 28366, 34912, 43640, 56732, 69824, 70915, 87280, 113464, 139648, 141830, 174560, 226928, 279296, 283660, 349120, 453856, 567320, 698240, 907712, 1134640, 1396480, 1815424, 2269280, 3630848, 4538560, 9077120, 18154240]

約数ペア:

[(1, 18154240), (2, 9077120), (4, 4538560), (5, 3630848), (8, 2269280), (10, 1815424), (13, 1396480), (16, 1134640), (20, 907712), (26, 698240), (32, 567320), (40, 453856), (52, 349120), (64, 283660), (65, 279296), (80, 226928), (104, 174560), (128, 141830), (130, 139648), (160, 113464), (208, 87280), (256, 70915), (260, 69824), (320, 56732), (416, 43640), (520, 34912), (640, 28366), (832, 21820), (1040, 17456), (1091, 16640), (1280, 14183), (1664, 10910), (2080, 8728), (2182, 8320), (3328, 5455), (4160, 4364)]