25548020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{487}}^1$

素因数の和:600

約数の個数: 48

約数和(自身を含む): 55913088

約数和(自身を除く): 30365068

約数列:

[1, 2, 4, 5, 10, 20, 43, 61, 86, 122, 172, 215, 244, 305, 430, 487, 610, 860, 974, 1220, 1948, 2435, 2623, 4870, 5246, 9740, 10492, 13115, 20941, 26230, 29707, 41882, 52460, 59414, 83764, 104705, 118828, 148535, 209410, 297070, 418820, 594140, 1277401, 2554802, 5109604, 6387005, 12774010, 25548020]

約数ペア:

[(1, 25548020), (2, 12774010), (4, 6387005), (5, 5109604), (10, 2554802), (20, 1277401), (43, 594140), (61, 418820), (86, 297070), (122, 209410), (172, 148535), (215, 118828), (244, 104705), (305, 83764), (430, 59414), (487, 52460), (610, 41882), (860, 29707), (974, 26230), (1220, 20941), (1948, 13115), (2435, 10492), (2623, 9740), (4870, 5246)]