401380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:124

約数の個数: 48

約数和(自身を含む): 999936

約数和(自身を除く): 598556

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 61, 70, 94, 122, 140, 188, 235, 244, 305, 329, 427, 470, 610, 658, 854, 940, 1220, 1316, 1645, 1708, 2135, 2867, 3290, 4270, 5734, 6580, 8540, 11468, 14335, 20069, 28670, 40138, 57340, 80276, 100345, 200690, 401380]

約数ペア:

[(1, 401380), (2, 200690), (4, 100345), (5, 80276), (7, 57340), (10, 40138), (14, 28670), (20, 20069), (28, 14335), (35, 11468), (47, 8540), (61, 6580), (70, 5734), (94, 4270), (122, 3290), (140, 2867), (188, 2135), (235, 1708), (244, 1645), (305, 1316), (329, 1220), (427, 940), (470, 854), (610, 658)]