66818990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:417

約数の個数: 64

約数和(自身を含む): 142940160

約数和(自身を除く): 76121170

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 79, 86, 158, 215, 281, 301, 395, 430, 553, 562, 602, 790, 1106, 1405, 1505, 1967, 2765, 2810, 3010, 3397, 3934, 5530, 6794, 9835, 12083, 16985, 19670, 22199, 23779, 24166, 33970, 44398, 47558, 60415, 84581, 110995, 118895, 120830, 155393, 169162, 221990, 237790, 310786, 422905, 776965, 845810, 954557, 1553930, 1909114, 4772785, 6681899, 9545570, 13363798, 33409495, 66818990]

約数ペア:

[(1, 66818990), (2, 33409495), (5, 13363798), (7, 9545570), (10, 6681899), (14, 4772785), (35, 1909114), (43, 1553930), (70, 954557), (79, 845810), (86, 776965), (158, 422905), (215, 310786), (281, 237790), (301, 221990), (395, 169162), (430, 155393), (553, 120830), (562, 118895), (602, 110995), (790, 84581), (1106, 60415), (1405, 47558), (1505, 44398), (1967, 33970), (2765, 24166), (2810, 23779), (3010, 22199), (3397, 19670), (3934, 16985), (5530, 12083), (6794, 9835)]