81897228

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2731}}^1$

素因数の和:2772

約数の個数: 108

約数和(自身を含む): 255075912

約数和(自身を除く): 173178684

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 34, 36, 42, 49, 51, 63, 68, 84, 98, 102, 119, 126, 147, 153, 196, 204, 238, 252, 294, 306, 357, 441, 476, 588, 612, 714, 833, 882, 1071, 1428, 1666, 1764, 2142, 2499, 2731, 3332, 4284, 4998, 5462, 7497, 8193, 9996, 10924, 14994, 16386, 19117, 24579, 29988, 32772, 38234, 46427, 49158, 57351, 76468, 92854, 98316, 114702, 133819, 139281, 172053, 185708, 229404, 267638, 278562, 324989, 344106, 401457, 417843, 535276, 557124, 649978, 688212, 802914, 835686, 974967, 1204371, 1299956, 1605828, 1671372, 1949934, 2274923, 2408742, 2924901, 3899868, 4549846, 4817484, 5849802, 6824769, 9099692, 11699604, 13649538, 20474307, 27299076, 40948614, 81897228]

約数ペア:

[(1, 81897228), (2, 40948614), (3, 27299076), (4, 20474307), (6, 13649538), (7, 11699604), (9, 9099692), (12, 6824769), (14, 5849802), (17, 4817484), (18, 4549846), (21, 3899868), (28, 2924901), (34, 2408742), (36, 2274923), (42, 1949934), (49, 1671372), (51, 1605828), (63, 1299956), (68, 1204371), (84, 974967), (98, 835686), (102, 802914), (119, 688212), (126, 649978), (147, 557124), (153, 535276), (196, 417843), (204, 401457), (238, 344106), (252, 324989), (294, 278562), (306, 267638), (357, 229404), (441, 185708), (476, 172053), (588, 139281), (612, 133819), (714, 114702), (833, 98316), (882, 92854), (1071, 76468), (1428, 57351), (1666, 49158), (1764, 46427), (2142, 38234), (2499, 32772), (2731, 29988), (3332, 24579), (4284, 19117), (4998, 16386), (5462, 14994), (7497, 10924), (8193, 9996)]