404857520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163249}}^1$

素因数の和:163293

約数の個数: 40

約数和(自身を含む): 971664000

約数和(自身を除く): 566806480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 163249, 326498, 652996, 816245, 1305992, 1632490, 2611984, 3264980, 5060719, 6529960, 10121438, 13059920, 20242876, 25303595, 40485752, 50607190, 80971504, 101214380, 202428760, 404857520]

約数ペア:

[(1, 404857520), (2, 202428760), (4, 101214380), (5, 80971504), (8, 50607190), (10, 40485752), (16, 25303595), (20, 20242876), (31, 13059920), (40, 10121438), (62, 6529960), (80, 5060719), (124, 3264980), (155, 2611984), (248, 1632490), (310, 1305992), (496, 816245), (620, 652996), (1240, 326498), (2480, 163249)]