18289840

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^2\times {\mathrm{167}}^1$

素因数の和:254

約数の個数: 60

約数和(自身を含む): 43965936

約数和(自身を除く): 25676096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 167, 185, 296, 334, 370, 592, 668, 740, 835, 1336, 1369, 1480, 1670, 2672, 2738, 2960, 3340, 5476, 6179, 6680, 6845, 10952, 12358, 13360, 13690, 21904, 24716, 27380, 30895, 49432, 54760, 61790, 98864, 109520, 123580, 228623, 247160, 457246, 494320, 914492, 1143115, 1828984, 2286230, 3657968, 4572460, 9144920, 18289840]

約数ペア:

[(1, 18289840), (2, 9144920), (4, 4572460), (5, 3657968), (8, 2286230), (10, 1828984), (16, 1143115), (20, 914492), (37, 494320), (40, 457246), (74, 247160), (80, 228623), (148, 123580), (167, 109520), (185, 98864), (296, 61790), (334, 54760), (370, 49432), (592, 30895), (668, 27380), (740, 24716), (835, 21904), (1336, 13690), (1369, 13360), (1480, 12358), (1670, 10952), (2672, 6845), (2738, 6680), (2960, 6179), (3340, 5476)]