51155020

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{7457}}^1$

素因数の和:7487

約数の個数: 48

約数和(自身を含む): 125294400

約数和(自身を除く): 74139380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 7457, 14914, 29828, 37285, 52199, 74570, 104398, 149140, 208796, 260995, 365393, 521990, 730786, 1043980, 1461572, 1826965, 2557751, 3653930, 5115502, 7307860, 10231004, 12788755, 25577510, 51155020]

約数ペア:

[(1, 51155020), (2, 25577510), (4, 12788755), (5, 10231004), (7, 7307860), (10, 5115502), (14, 3653930), (20, 2557751), (28, 1826965), (35, 1461572), (49, 1043980), (70, 730786), (98, 521990), (140, 365393), (196, 260995), (245, 208796), (343, 149140), (490, 104398), (686, 74570), (980, 52199), (1372, 37285), (1715, 29828), (3430, 14914), (6860, 7457)]