200520560

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{28163}}^1$

素因数の和:28265

約数の個数: 40

約数和(自身を含む): 471465360

約数和(自身を除く): 270944800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 28163, 56326, 112652, 140815, 225304, 281630, 450608, 563260, 1126520, 2253040, 2506507, 5013014, 10026028, 12532535, 20052056, 25065070, 40104112, 50130140, 100260280, 200520560]

約数ペア:

[(1, 200520560), (2, 100260280), (4, 50130140), (5, 40104112), (8, 25065070), (10, 20052056), (16, 12532535), (20, 10026028), (40, 5013014), (80, 2506507), (89, 2253040), (178, 1126520), (356, 563260), (445, 450608), (712, 281630), (890, 225304), (1424, 140815), (1780, 112652), (3560, 56326), (7120, 28163)]