2913440

素因数分解:

$2^5\times 5^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:285

約数の個数: 48

約数和(自身を含む): 6985440

約数和(自身を除く): 4072000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 131, 139, 160, 262, 278, 524, 556, 655, 695, 1048, 1112, 1310, 1390, 2096, 2224, 2620, 2780, 4192, 4448, 5240, 5560, 10480, 11120, 18209, 20960, 22240, 36418, 72836, 91045, 145672, 182090, 291344, 364180, 582688, 728360, 1456720, 2913440]

約数ペア:

[(1, 2913440), (2, 1456720), (4, 728360), (5, 582688), (8, 364180), (10, 291344), (16, 182090), (20, 145672), (32, 91045), (40, 72836), (80, 36418), (131, 22240), (139, 20960), (160, 18209), (262, 11120), (278, 10480), (524, 5560), (556, 5240), (655, 4448), (695, 4192), (1048, 2780), (1112, 2620), (1310, 2224), (1390, 2096)]