78852640

素因数分解:

$2^5\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1229}}^1$

素因数の和:1645

約数の個数: 48

約数和(自身を含む): 186905880

約数和(自身を除く): 108053240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 401, 802, 1229, 1604, 2005, 2458, 3208, 4010, 4916, 6145, 6416, 8020, 9832, 12290, 12832, 16040, 19664, 24580, 32080, 39328, 49160, 64160, 98320, 196640, 492829, 985658, 1971316, 2464145, 3942632, 4928290, 7885264, 9856580, 15770528, 19713160, 39426320, 78852640]

約数ペア:

[(1, 78852640), (2, 39426320), (4, 19713160), (5, 15770528), (8, 9856580), (10, 7885264), (16, 4928290), (20, 3942632), (32, 2464145), (40, 1971316), (80, 985658), (160, 492829), (401, 196640), (802, 98320), (1229, 64160), (1604, 49160), (2005, 39328), (2458, 32080), (3208, 24580), (4010, 19664), (4916, 16040), (6145, 12832), (6416, 12290), (8020, 9832)]