623420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:150

約数の個数: 48

約数和(自身を含む): 1541568

約数和(自身を除く): 918148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 73, 122, 140, 146, 244, 292, 305, 365, 427, 511, 610, 730, 854, 1022, 1220, 1460, 1708, 2044, 2135, 2555, 4270, 4453, 5110, 8540, 8906, 10220, 17812, 22265, 31171, 44530, 62342, 89060, 124684, 155855, 311710, 623420]

約数ペア:

[(1, 623420), (2, 311710), (4, 155855), (5, 124684), (7, 89060), (10, 62342), (14, 44530), (20, 31171), (28, 22265), (35, 17812), (61, 10220), (70, 8906), (73, 8540), (122, 5110), (140, 4453), (146, 4270), (244, 2555), (292, 2135), (305, 2044), (365, 1708), (427, 1460), (511, 1220), (610, 1022), (730, 854)]