81495645

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1907}}^1$

素因数の和:1970

約数の個数: 64

約数和(自身を含む): 167049216

約数和(自身を除く): 85553571

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 37, 55, 77, 105, 111, 165, 185, 231, 259, 385, 407, 555, 777, 1155, 1221, 1295, 1907, 2035, 2849, 3885, 5721, 6105, 8547, 9535, 13349, 14245, 20977, 28605, 40047, 42735, 62931, 66745, 70559, 104885, 146839, 200235, 211677, 314655, 352795, 440517, 493913, 734195, 776149, 1058385, 1481739, 2202585, 2328447, 2469565, 3880745, 5433043, 7408695, 11642235, 16299129, 27165215, 81495645]

約数ペア:

[(1, 81495645), (3, 27165215), (5, 16299129), (7, 11642235), (11, 7408695), (15, 5433043), (21, 3880745), (33, 2469565), (35, 2328447), (37, 2202585), (55, 1481739), (77, 1058385), (105, 776149), (111, 734195), (165, 493913), (185, 440517), (231, 352795), (259, 314655), (385, 211677), (407, 200235), (555, 146839), (777, 104885), (1155, 70559), (1221, 66745), (1295, 62931), (1907, 42735), (2035, 40047), (2849, 28605), (3885, 20977), (5721, 14245), (6105, 13349), (8547, 9535)]