639464784

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{51437}}^1$

素因数の和:51492

約数の個数: 80

約数和(自身を含む): 1939006848

約数和(自身を除く): 1299542064

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 37, 42, 48, 56, 74, 84, 111, 112, 148, 168, 222, 259, 296, 336, 444, 518, 592, 777, 888, 1036, 1554, 1776, 2072, 3108, 4144, 6216, 12432, 51437, 102874, 154311, 205748, 308622, 360059, 411496, 617244, 720118, 822992, 1080177, 1234488, 1440236, 1903169, 2160354, 2468976, 2880472, 3806338, 4320708, 5709507, 5760944, 7612676, 8641416, 11419014, 13322183, 15225352, 17282832, 22838028, 26644366, 30450704, 39966549, 45676056, 53288732, 79933098, 91352112, 106577464, 159866196, 213154928, 319732392, 639464784]

約数ペア:

[(1, 639464784), (2, 319732392), (3, 213154928), (4, 159866196), (6, 106577464), (7, 91352112), (8, 79933098), (12, 53288732), (14, 45676056), (16, 39966549), (21, 30450704), (24, 26644366), (28, 22838028), (37, 17282832), (42, 15225352), (48, 13322183), (56, 11419014), (74, 8641416), (84, 7612676), (111, 5760944), (112, 5709507), (148, 4320708), (168, 3806338), (222, 2880472), (259, 2468976), (296, 2160354), (336, 1903169), (444, 1440236), (518, 1234488), (592, 1080177), (777, 822992), (888, 720118), (1036, 617244), (1554, 411496), (1776, 360059), (2072, 308622), (3108, 205748), (4144, 154311), (6216, 102874), (12432, 51437)]