64821820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{491}}^1$

素因数の和:571

約数の個数: 96

約数和(自身を含む): 166634496

約数和(自身を除く): 101812676

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 41, 46, 70, 82, 92, 115, 140, 161, 164, 205, 230, 287, 322, 410, 460, 491, 574, 644, 805, 820, 943, 982, 1148, 1435, 1610, 1886, 1964, 2455, 2870, 3220, 3437, 3772, 4715, 4910, 5740, 6601, 6874, 9430, 9820, 11293, 13202, 13748, 17185, 18860, 20131, 22586, 26404, 33005, 34370, 40262, 45172, 56465, 66010, 68740, 79051, 80524, 100655, 112930, 132020, 140917, 158102, 201310, 225860, 281834, 316204, 395255, 402620, 463013, 563668, 704585, 790510, 926026, 1409170, 1581020, 1852052, 2315065, 2818340, 3241091, 4630130, 6482182, 9260260, 12964364, 16205455, 32410910, 64821820]

約数ペア:

[(1, 64821820), (2, 32410910), (4, 16205455), (5, 12964364), (7, 9260260), (10, 6482182), (14, 4630130), (20, 3241091), (23, 2818340), (28, 2315065), (35, 1852052), (41, 1581020), (46, 1409170), (70, 926026), (82, 790510), (92, 704585), (115, 563668), (140, 463013), (161, 402620), (164, 395255), (205, 316204), (230, 281834), (287, 225860), (322, 201310), (410, 158102), (460, 140917), (491, 132020), (574, 112930), (644, 100655), (805, 80524), (820, 79051), (943, 68740), (982, 66010), (1148, 56465), (1435, 45172), (1610, 40262), (1886, 34370), (1964, 33005), (2455, 26404), (2870, 22586), (3220, 20131), (3437, 18860), (3772, 17185), (4715, 13748), (4910, 13202), (5740, 11293), (6601, 9820), (6874, 9430)]