71669175

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 123349248

約数和(自身を除く): 51680073

約数列:

[1, 3, 5, 15, 25, 43, 71, 75, 129, 213, 215, 313, 355, 645, 939, 1065, 1075, 1565, 1775, 3053, 3225, 4695, 5325, 7825, 9159, 13459, 15265, 22223, 23475, 40377, 45795, 66669, 67295, 76325, 111115, 201885, 228975, 333345, 336475, 555575, 955589, 1009425, 1666725, 2866767, 4777945, 14333835, 23889725, 71669175]

約数ペア:

[(1, 71669175), (3, 23889725), (5, 14333835), (15, 4777945), (25, 2866767), (43, 1666725), (71, 1009425), (75, 955589), (129, 555575), (213, 336475), (215, 333345), (313, 228975), (355, 201885), (645, 111115), (939, 76325), (1065, 67295), (1075, 66669), (1565, 45795), (1775, 40377), (3053, 23475), (3225, 22223), (4695, 15265), (5325, 13459), (7825, 9159)]