17395220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 37920960

約数和(自身を除く): 20525740

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 113, 172, 179, 215, 226, 358, 430, 452, 565, 716, 860, 895, 1130, 1790, 2260, 3580, 4859, 7697, 9718, 15394, 19436, 20227, 24295, 30788, 38485, 40454, 48590, 76970, 80908, 97180, 101135, 153940, 202270, 404540, 869761, 1739522, 3479044, 4348805, 8697610, 17395220]

約数ペア:

[(1, 17395220), (2, 8697610), (4, 4348805), (5, 3479044), (10, 1739522), (20, 869761), (43, 404540), (86, 202270), (113, 153940), (172, 101135), (179, 97180), (215, 80908), (226, 76970), (358, 48590), (430, 40454), (452, 38485), (565, 30788), (716, 24295), (860, 20227), (895, 19436), (1130, 15394), (1790, 9718), (2260, 7697), (3580, 4859)]