18255520

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1607}}^1$

素因数の和:1693

約数の個数: 48

約数和(自身を含む): 43763328

約数和(自身を除く): 25507808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 1607, 2272, 2840, 3214, 5680, 6428, 8035, 11360, 12856, 16070, 25712, 32140, 51424, 64280, 114097, 128560, 228194, 257120, 456388, 570485, 912776, 1140970, 1825552, 2281940, 3651104, 4563880, 9127760, 18255520]

約数ペア:

[(1, 18255520), (2, 9127760), (4, 4563880), (5, 3651104), (8, 2281940), (10, 1825552), (16, 1140970), (20, 912776), (32, 570485), (40, 456388), (71, 257120), (80, 228194), (142, 128560), (160, 114097), (284, 64280), (355, 51424), (568, 32140), (710, 25712), (1136, 16070), (1420, 12856), (1607, 11360), (2272, 8035), (2840, 6428), (3214, 5680)]