81478560

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{853}}^1$

素因数の和:1070

約数の個数: 96

約数和(自身を含む): 258249600

約数和(自身を除く): 176771040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 199, 240, 398, 480, 597, 796, 853, 995, 1194, 1592, 1706, 1990, 2388, 2559, 2985, 3184, 3412, 3980, 4265, 4776, 5118, 5970, 6368, 6824, 7960, 8530, 9552, 10236, 11940, 12795, 13648, 15920, 17060, 19104, 20472, 23880, 25590, 27296, 31840, 34120, 40944, 47760, 51180, 68240, 81888, 95520, 102360, 136480, 169747, 204720, 339494, 409440, 509241, 678988, 848735, 1018482, 1357976, 1697470, 2036964, 2546205, 2715952, 3394940, 4073928, 5092410, 5431904, 6789880, 8147856, 10184820, 13579760, 16295712, 20369640, 27159520, 40739280, 81478560]

約数ペア:

[(1, 81478560), (2, 40739280), (3, 27159520), (4, 20369640), (5, 16295712), (6, 13579760), (8, 10184820), (10, 8147856), (12, 6789880), (15, 5431904), (16, 5092410), (20, 4073928), (24, 3394940), (30, 2715952), (32, 2546205), (40, 2036964), (48, 1697470), (60, 1357976), (80, 1018482), (96, 848735), (120, 678988), (160, 509241), (199, 409440), (240, 339494), (398, 204720), (480, 169747), (597, 136480), (796, 102360), (853, 95520), (995, 81888), (1194, 68240), (1592, 51180), (1706, 47760), (1990, 40944), (2388, 34120), (2559, 31840), (2985, 27296), (3184, 25590), (3412, 23880), (3980, 20472), (4265, 19104), (4776, 17060), (5118, 15920), (5970, 13648), (6368, 12795), (6824, 11940), (7960, 10236), (8530, 9552)]