8021020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:139

約数の個数: 96

約数和(自身を含む): 20901888

約数和(自身を除く): 12880868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 47, 53, 70, 92, 94, 106, 115, 140, 161, 188, 212, 230, 235, 265, 322, 329, 371, 460, 470, 530, 644, 658, 742, 805, 940, 1060, 1081, 1219, 1316, 1484, 1610, 1645, 1855, 2162, 2438, 2491, 3220, 3290, 3710, 4324, 4876, 4982, 5405, 6095, 6580, 7420, 7567, 8533, 9964, 10810, 12190, 12455, 15134, 17066, 17437, 21620, 24380, 24910, 30268, 34132, 34874, 37835, 42665, 49820, 57293, 69748, 75670, 85330, 87185, 114586, 151340, 170660, 174370, 229172, 286465, 348740, 401051, 572930, 802102, 1145860, 1604204, 2005255, 4010510, 8021020]

約数ペア:

[(1, 8021020), (2, 4010510), (4, 2005255), (5, 1604204), (7, 1145860), (10, 802102), (14, 572930), (20, 401051), (23, 348740), (28, 286465), (35, 229172), (46, 174370), (47, 170660), (53, 151340), (70, 114586), (92, 87185), (94, 85330), (106, 75670), (115, 69748), (140, 57293), (161, 49820), (188, 42665), (212, 37835), (230, 34874), (235, 34132), (265, 30268), (322, 24910), (329, 24380), (371, 21620), (460, 17437), (470, 17066), (530, 15134), (644, 12455), (658, 12190), (742, 10810), (805, 9964), (940, 8533), (1060, 7567), (1081, 7420), (1219, 6580), (1316, 6095), (1484, 5405), (1610, 4982), (1645, 4876), (1855, 4324), (2162, 3710), (2438, 3290), (2491, 3220)]