1989392580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{1578883}}^1$

素因数の和:1578905

約数の個数: 72

約数和(自身を含む): 6896565312

約数和(自身を除く): 4907172732

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 1578883, 3157766, 4736649, 6315532, 7894415, 9473298, 11052181, 14209947, 15788830, 18946596, 22104362, 23683245, 28419894, 31577660, 33156543, 44208724, 47366490, 55260905, 56839788, 66313086, 71049735, 94732980, 99469629, 110521810, 132626172, 142099470, 165782715, 198939258, 221043620, 284198940, 331565430, 397878516, 497348145, 663130860, 994696290, 1989392580]

約数ペア:

[(1, 1989392580), (2, 994696290), (3, 663130860), (4, 497348145), (5, 397878516), (6, 331565430), (7, 284198940), (9, 221043620), (10, 198939258), (12, 165782715), (14, 142099470), (15, 132626172), (18, 110521810), (20, 99469629), (21, 94732980), (28, 71049735), (30, 66313086), (35, 56839788), (36, 55260905), (42, 47366490), (45, 44208724), (60, 33156543), (63, 31577660), (70, 28419894), (84, 23683245), (90, 22104362), (105, 18946596), (126, 15788830), (140, 14209947), (180, 11052181), (210, 9473298), (252, 7894415), (315, 6315532), (420, 4736649), (630, 3157766), (1260, 1578883)]