81315810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{241}}^1$

素因数の和:440

約数の個数: 96

約数和(自身を含む): 222887808

約数和(自身を除く): 141571998

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 163, 207, 230, 241, 326, 345, 414, 482, 489, 690, 723, 815, 978, 1035, 1205, 1446, 1467, 1630, 2070, 2169, 2410, 2445, 2934, 3615, 3749, 4338, 4890, 5543, 7230, 7335, 7498, 10845, 11086, 11247, 14670, 16629, 18745, 21690, 22494, 27715, 33258, 33741, 37490, 39283, 49887, 55430, 56235, 67482, 78566, 83145, 99774, 112470, 117849, 166290, 168705, 196415, 235698, 249435, 337410, 353547, 392830, 498870, 589245, 707094, 903509, 1178490, 1767735, 1807018, 2710527, 3535470, 4517545, 5421054, 8131581, 9035090, 13552635, 16263162, 27105270, 40657905, 81315810]

約数ペア:

[(1, 81315810), (2, 40657905), (3, 27105270), (5, 16263162), (6, 13552635), (9, 9035090), (10, 8131581), (15, 5421054), (18, 4517545), (23, 3535470), (30, 2710527), (45, 1807018), (46, 1767735), (69, 1178490), (90, 903509), (115, 707094), (138, 589245), (163, 498870), (207, 392830), (230, 353547), (241, 337410), (326, 249435), (345, 235698), (414, 196415), (482, 168705), (489, 166290), (690, 117849), (723, 112470), (815, 99774), (978, 83145), (1035, 78566), (1205, 67482), (1446, 56235), (1467, 55430), (1630, 49887), (2070, 39283), (2169, 37490), (2410, 33741), (2445, 33258), (2934, 27715), (3615, 22494), (3749, 21690), (4338, 18745), (4890, 16629), (5543, 14670), (7230, 11247), (7335, 11086), (7498, 10845)]