158459720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{1171}}^1$

素因数の和:1398

約数の個数: 64

約数和(自身を含む): 379728000

約数和(自身を除く): 221268280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 199, 340, 398, 680, 796, 995, 1171, 1592, 1990, 2342, 3383, 3980, 4684, 5855, 6766, 7960, 9368, 11710, 13532, 16915, 19907, 23420, 27064, 33830, 39814, 46840, 67660, 79628, 99535, 135320, 159256, 199070, 233029, 398140, 466058, 796280, 932116, 1165145, 1864232, 2330290, 3961493, 4660580, 7922986, 9321160, 15845972, 19807465, 31691944, 39614930, 79229860, 158459720]

約数ペア:

[(1, 158459720), (2, 79229860), (4, 39614930), (5, 31691944), (8, 19807465), (10, 15845972), (17, 9321160), (20, 7922986), (34, 4660580), (40, 3961493), (68, 2330290), (85, 1864232), (136, 1165145), (170, 932116), (199, 796280), (340, 466058), (398, 398140), (680, 233029), (796, 199070), (995, 159256), (1171, 135320), (1592, 99535), (1990, 79628), (2342, 67660), (3383, 46840), (3980, 39814), (4684, 33830), (5855, 27064), (6766, 23420), (7960, 19907), (9368, 16915), (11710, 13532)]