15909940

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 34574400

約数和(自身を除く): 18664460

約数列:

[1, 2, 4, 5, 10, 20, 59, 97, 118, 139, 194, 236, 278, 295, 388, 485, 556, 590, 695, 970, 1180, 1390, 1940, 2780, 5723, 8201, 11446, 13483, 16402, 22892, 26966, 28615, 32804, 41005, 53932, 57230, 67415, 82010, 114460, 134830, 164020, 269660, 795497, 1590994, 3181988, 3977485, 7954970, 15909940]

約数ペア:

[(1, 15909940), (2, 7954970), (4, 3977485), (5, 3181988), (10, 1590994), (20, 795497), (59, 269660), (97, 164020), (118, 134830), (139, 114460), (194, 82010), (236, 67415), (278, 57230), (295, 53932), (388, 41005), (485, 32804), (556, 28615), (590, 26966), (695, 22892), (970, 16402), (1180, 13483), (1390, 11446), (1940, 8201), (2780, 5723)]