17289940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{353}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 38062080

約数和(自身を除く): 20772140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 124, 155, 158, 310, 316, 353, 395, 620, 706, 790, 1412, 1580, 1765, 2449, 3530, 4898, 7060, 9796, 10943, 12245, 21886, 24490, 27887, 43772, 48980, 54715, 55774, 109430, 111548, 139435, 218860, 278870, 557740, 864497, 1728994, 3457988, 4322485, 8644970, 17289940]

約数ペア:

[(1, 17289940), (2, 8644970), (4, 4322485), (5, 3457988), (10, 1728994), (20, 864497), (31, 557740), (62, 278870), (79, 218860), (124, 139435), (155, 111548), (158, 109430), (310, 55774), (316, 54715), (353, 48980), (395, 43772), (620, 27887), (706, 24490), (790, 21886), (1412, 12245), (1580, 10943), (1765, 9796), (2449, 7060), (3530, 4898)]