200784520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{161923}}^1$

素因数の和:161965

約数の個数: 32

約数和(自身を含む): 466341120

約数和(自身を除く): 265556600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 161923, 323846, 647692, 809615, 1295384, 1619230, 3238460, 5019613, 6476920, 10039226, 20078452, 25098065, 40156904, 50196130, 100392260, 200784520]

約数ペア:

[(1, 200784520), (2, 100392260), (4, 50196130), (5, 40156904), (8, 25098065), (10, 20078452), (20, 10039226), (31, 6476920), (40, 5019613), (62, 3238460), (124, 1619230), (155, 1295384), (248, 809615), (310, 647692), (620, 323846), (1240, 161923)]