201528520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{162523}}^1$

素因数の和:162565

約数の個数: 32

約数和(自身を含む): 468069120

約数和(自身を除く): 266540600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 162523, 325046, 650092, 812615, 1300184, 1625230, 3250460, 5038213, 6500920, 10076426, 20152852, 25191065, 40305704, 50382130, 100764260, 201528520]

約数ペア:

[(1, 201528520), (2, 100764260), (4, 50382130), (5, 40305704), (8, 25191065), (10, 20152852), (20, 10076426), (31, 6500920), (40, 5038213), (62, 3250460), (124, 1625230), (155, 1300184), (248, 812615), (310, 650092), (620, 325046), (1240, 162523)]