16856860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1153}}^1$

素因数の和:1222

約数の個数: 48

約数和(自身を含む): 38386656

約数和(自身を除く): 21529796

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 340, 430, 731, 860, 1153, 1462, 2306, 2924, 3655, 4612, 5765, 7310, 11530, 14620, 19601, 23060, 39202, 49579, 78404, 98005, 99158, 196010, 198316, 247895, 392020, 495790, 842843, 991580, 1685686, 3371372, 4214215, 8428430, 16856860]

約数ペア:

[(1, 16856860), (2, 8428430), (4, 4214215), (5, 3371372), (10, 1685686), (17, 991580), (20, 842843), (34, 495790), (43, 392020), (68, 247895), (85, 198316), (86, 196010), (170, 99158), (172, 98005), (215, 78404), (340, 49579), (430, 39202), (731, 23060), (860, 19601), (1153, 14620), (1462, 11530), (2306, 7310), (2924, 5765), (3655, 4612)]