17972020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{541}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 41521536

約数和(自身を除く): 23549516

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 151, 220, 302, 541, 604, 755, 1082, 1510, 1661, 2164, 2705, 3020, 3322, 5410, 5951, 6644, 8305, 10820, 11902, 16610, 23804, 29755, 33220, 59510, 81691, 119020, 163382, 326764, 408455, 816910, 898601, 1633820, 1797202, 3594404, 4493005, 8986010, 17972020]

約数ペア:

[(1, 17972020), (2, 8986010), (4, 4493005), (5, 3594404), (10, 1797202), (11, 1633820), (20, 898601), (22, 816910), (44, 408455), (55, 326764), (110, 163382), (151, 119020), (220, 81691), (302, 59510), (541, 33220), (604, 29755), (755, 23804), (1082, 16610), (1510, 11902), (1661, 10820), (2164, 8305), (2705, 6644), (3020, 5951), (3322, 5410)]