18516800

素因数分解:

$2^6\times 5^2\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:256

約数の個数: 84

約数和(自身を含む): 46488096

約数和(自身を除く): 27971296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 71, 80, 100, 142, 160, 163, 200, 284, 320, 326, 355, 400, 568, 652, 710, 800, 815, 1136, 1304, 1420, 1600, 1630, 1775, 2272, 2608, 2840, 3260, 3550, 4075, 4544, 5216, 5680, 6520, 7100, 8150, 10432, 11360, 11573, 13040, 14200, 16300, 22720, 23146, 26080, 28400, 32600, 46292, 52160, 56800, 57865, 65200, 92584, 113600, 115730, 130400, 185168, 231460, 260800, 289325, 370336, 462920, 578650, 740672, 925840, 1157300, 1851680, 2314600, 3703360, 4629200, 9258400, 18516800]

約数ペア:

[(1, 18516800), (2, 9258400), (4, 4629200), (5, 3703360), (8, 2314600), (10, 1851680), (16, 1157300), (20, 925840), (25, 740672), (32, 578650), (40, 462920), (50, 370336), (64, 289325), (71, 260800), (80, 231460), (100, 185168), (142, 130400), (160, 115730), (163, 113600), (200, 92584), (284, 65200), (320, 57865), (326, 56800), (355, 52160), (400, 46292), (568, 32600), (652, 28400), (710, 26080), (800, 23146), (815, 22720), (1136, 16300), (1304, 14200), (1420, 13040), (1600, 11573), (1630, 11360), (1775, 10432), (2272, 8150), (2608, 7100), (2840, 6520), (3260, 5680), (3550, 5216), (4075, 4544)]