2780001420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{6619051}}^1$

素因数の和:6619070

約数の個数: 48

約数和(自身を含む): 8896005888

約数和(自身を除く): 6116004468

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 6619051, 13238102, 19857153, 26476204, 33095255, 39714306, 46333357, 66190510, 79428612, 92666714, 99285765, 132381020, 139000071, 185333428, 198571530, 231666785, 278000142, 397143060, 463333570, 556000284, 695000355, 926667140, 1390000710, 2780001420]

約数ペア:

[(1, 2780001420), (2, 1390000710), (3, 926667140), (4, 695000355), (5, 556000284), (6, 463333570), (7, 397143060), (10, 278000142), (12, 231666785), (14, 198571530), (15, 185333428), (20, 139000071), (21, 132381020), (28, 99285765), (30, 92666714), (35, 79428612), (42, 66190510), (60, 46333357), (70, 39714306), (84, 33095255), (105, 26476204), (140, 19857153), (210, 13238102), (420, 6619051)]