19367660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{457}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 44165856

約数和(自身を除く): 24798196

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 163, 260, 326, 457, 652, 815, 914, 1630, 1828, 2119, 2285, 3260, 4238, 4570, 5941, 8476, 9140, 10595, 11882, 21190, 23764, 29705, 42380, 59410, 74491, 118820, 148982, 297964, 372455, 744910, 968383, 1489820, 1936766, 3873532, 4841915, 9683830, 19367660]

約数ペア:

[(1, 19367660), (2, 9683830), (4, 4841915), (5, 3873532), (10, 1936766), (13, 1489820), (20, 968383), (26, 744910), (52, 372455), (65, 297964), (130, 148982), (163, 118820), (260, 74491), (326, 59410), (457, 42380), (652, 29705), (815, 23764), (914, 21190), (1630, 11882), (1828, 10595), (2119, 9140), (2285, 8476), (3260, 5941), (4238, 4570)]