840650

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:95

約数の個数: 48

約数和(自身を含む): 1767744

約数和(自身を除く): 927094

約数列:

[1, 2, 5, 10, 17, 23, 25, 34, 43, 46, 50, 85, 86, 115, 170, 215, 230, 391, 425, 430, 575, 731, 782, 850, 989, 1075, 1150, 1462, 1955, 1978, 2150, 3655, 3910, 4945, 7310, 9775, 9890, 16813, 18275, 19550, 24725, 33626, 36550, 49450, 84065, 168130, 420325, 840650]

約数ペア:

[(1, 840650), (2, 420325), (5, 168130), (10, 84065), (17, 49450), (23, 36550), (25, 33626), (34, 24725), (43, 19550), (46, 18275), (50, 16813), (85, 9890), (86, 9775), (115, 7310), (170, 4945), (215, 3910), (230, 3655), (391, 2150), (425, 1978), (430, 1955), (575, 1462), (731, 1150), (782, 1075), (850, 989)]