490294420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{281}}^1$

素因数の和:422

約数の個数: 144

約数和(自身を含む): 1310609664

約数和(自身を除く): 820315244

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 103, 110, 121, 140, 154, 206, 220, 242, 281, 308, 385, 412, 484, 515, 562, 605, 721, 770, 847, 1030, 1124, 1133, 1210, 1405, 1442, 1540, 1694, 1967, 2060, 2266, 2420, 2810, 2884, 3091, 3388, 3605, 3934, 4235, 4532, 5620, 5665, 6182, 7210, 7868, 7931, 8470, 9835, 11330, 12364, 12463, 14420, 15455, 15862, 16940, 19670, 21637, 22660, 24926, 28943, 30910, 31724, 34001, 39340, 39655, 43274, 49852, 57886, 61820, 62315, 68002, 79310, 86548, 87241, 108185, 115772, 124630, 136004, 144715, 158620, 170005, 174482, 202601, 216370, 238007, 249260, 289430, 318373, 340010, 348964, 405202, 432740, 436205, 476014, 578860, 636746, 680020, 810404, 872410, 952028, 1013005, 1190035, 1273492, 1591865, 1744820, 2026010, 2228611, 2380070, 3183730, 3502103, 4052020, 4457222, 4760140, 6367460, 7004206, 8914444, 11143055, 14008412, 17510515, 22286110, 24514721, 35021030, 44572220, 49029442, 70042060, 98058884, 122573605, 245147210, 490294420]

約数ペア:

[(1, 490294420), (2, 245147210), (4, 122573605), (5, 98058884), (7, 70042060), (10, 49029442), (11, 44572220), (14, 35021030), (20, 24514721), (22, 22286110), (28, 17510515), (35, 14008412), (44, 11143055), (55, 8914444), (70, 7004206), (77, 6367460), (103, 4760140), (110, 4457222), (121, 4052020), (140, 3502103), (154, 3183730), (206, 2380070), (220, 2228611), (242, 2026010), (281, 1744820), (308, 1591865), (385, 1273492), (412, 1190035), (484, 1013005), (515, 952028), (562, 872410), (605, 810404), (721, 680020), (770, 636746), (847, 578860), (1030, 476014), (1124, 436205), (1133, 432740), (1210, 405202), (1405, 348964), (1442, 340010), (1540, 318373), (1694, 289430), (1967, 249260), (2060, 238007), (2266, 216370), (2420, 202601), (2810, 174482), (2884, 170005), (3091, 158620), (3388, 144715), (3605, 136004), (3934, 124630), (4235, 115772), (4532, 108185), (5620, 87241), (5665, 86548), (6182, 79310), (7210, 68002), (7868, 62315), (7931, 61820), (8470, 57886), (9835, 49852), (11330, 43274), (12364, 39655), (12463, 39340), (14420, 34001), (15455, 31724), (15862, 30910), (16940, 28943), (19670, 24926), (21637, 22660)]