1663997408020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1\times {\mathrm{3973061}}^1$

素因数の和:3973600

約数の個数: 48

約数和(自身を含む): 3583002665088

約数和(自身を除く): 1919005257068

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 487, 860, 974, 1948, 2435, 4870, 9740, 20941, 41882, 83764, 104705, 209410, 418820, 3973061, 7946122, 15892244, 19865305, 39730610, 79461220, 170841623, 341683246, 683366492, 854208115, 1708416230, 1934880707, 3416832460, 3869761414, 7739522828, 9674403535, 19348807070, 38697614140, 83199870401, 166399740802, 332799481604, 415999352005, 831998704010, 1663997408020]

約数ペア:

[(1, 1663997408020), (2, 831998704010), (4, 415999352005), (5, 332799481604), (10, 166399740802), (20, 83199870401), (43, 38697614140), (86, 19348807070), (172, 9674403535), (215, 7739522828), (430, 3869761414), (487, 3416832460), (860, 1934880707), (974, 1708416230), (1948, 854208115), (2435, 683366492), (4870, 341683246), (9740, 170841623), (20941, 79461220), (41882, 39730610), (83764, 19865305), (104705, 15892244), (209410, 7946122), (418820, 3973061)]