28212100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{983}}^1$

素因数の和:1045

約数の個数: 72

約数和(自身を含む): 71745408

約数和(自身を除く): 43533308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 41, 50, 70, 82, 100, 140, 164, 175, 205, 287, 350, 410, 574, 700, 820, 983, 1025, 1148, 1435, 1966, 2050, 2870, 3932, 4100, 4915, 5740, 6881, 7175, 9830, 13762, 14350, 19660, 24575, 27524, 28700, 34405, 40303, 49150, 68810, 80606, 98300, 137620, 161212, 172025, 201515, 282121, 344050, 403030, 564242, 688100, 806060, 1007575, 1128484, 1410605, 2015150, 2821210, 4030300, 5642420, 7053025, 14106050, 28212100]

約数ペア:

[(1, 28212100), (2, 14106050), (4, 7053025), (5, 5642420), (7, 4030300), (10, 2821210), (14, 2015150), (20, 1410605), (25, 1128484), (28, 1007575), (35, 806060), (41, 688100), (50, 564242), (70, 403030), (82, 344050), (100, 282121), (140, 201515), (164, 172025), (175, 161212), (205, 137620), (287, 98300), (350, 80606), (410, 68810), (574, 49150), (700, 40303), (820, 34405), (983, 28700), (1025, 27524), (1148, 24575), (1435, 19660), (1966, 14350), (2050, 13762), (2870, 9830), (3932, 7175), (4100, 6881), (4915, 5740)]