251775090

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{399643}}^1$

素因数の和:399663

約数の個数: 48

約数和(自身を含む): 748133568

約数和(自身を除く): 496358478

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 399643, 799286, 1198929, 1998215, 2397858, 2797501, 3596787, 3996430, 5595002, 5994645, 7193574, 8392503, 11989290, 13987505, 16785006, 17983935, 25177509, 27975010, 35967870, 41962515, 50355018, 83925030, 125887545, 251775090]

約数ペア:

[(1, 251775090), (2, 125887545), (3, 83925030), (5, 50355018), (6, 41962515), (7, 35967870), (9, 27975010), (10, 25177509), (14, 17983935), (15, 16785006), (18, 13987505), (21, 11989290), (30, 8392503), (35, 7193574), (42, 5994645), (45, 5595002), (63, 3996430), (70, 3596787), (90, 2797501), (105, 2397858), (126, 1998215), (210, 1198929), (315, 799286), (630, 399643)]