401064760

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1\times {\mathrm{449}}^1$

素因数の和:760

約数の個数: 64

約数和(自身を含む): 916596000

約数和(自身を除く): 515531240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 163, 274, 326, 449, 548, 652, 685, 815, 898, 1096, 1304, 1370, 1630, 1796, 2245, 2740, 3260, 3592, 4490, 5480, 6520, 8980, 17960, 22331, 44662, 61513, 73187, 89324, 111655, 123026, 146374, 178648, 223310, 246052, 292748, 307565, 365935, 446620, 492104, 585496, 615130, 731870, 893240, 1230260, 1463740, 2460520, 2927480, 10026619, 20053238, 40106476, 50133095, 80212952, 100266190, 200532380, 401064760]

約数ペア:

[(1, 401064760), (2, 200532380), (4, 100266190), (5, 80212952), (8, 50133095), (10, 40106476), (20, 20053238), (40, 10026619), (137, 2927480), (163, 2460520), (274, 1463740), (326, 1230260), (449, 893240), (548, 731870), (652, 615130), (685, 585496), (815, 492104), (898, 446620), (1096, 365935), (1304, 307565), (1370, 292748), (1630, 246052), (1796, 223310), (2245, 178648), (2740, 146374), (3260, 123026), (3592, 111655), (4490, 89324), (5480, 73187), (6520, 61513), (8980, 44662), (17960, 22331)]