78002380

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{9049}}^1$

素因数の和:9489

約数の個数: 24

約数和(自身を含む): 164203200

約数和(自身を除く): 86200820

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1724, 2155, 4310, 8620, 9049, 18098, 36196, 45245, 90490, 180980, 3900119, 7800238, 15600476, 19500595, 39001190, 78002380]

約数ペア:

[(1, 78002380), (2, 39001190), (4, 19500595), (5, 15600476), (10, 7800238), (20, 3900119), (431, 180980), (862, 90490), (1724, 45245), (2155, 36196), (4310, 18098), (8620, 9049)]