25181440

素因数分解:

$2^8\times 5^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 61221888

約数和(自身を除く): 36040448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 128, 160, 191, 206, 256, 320, 382, 412, 515, 640, 764, 824, 955, 1030, 1280, 1528, 1648, 1910, 2060, 3056, 3296, 3820, 4120, 6112, 6592, 7640, 8240, 12224, 13184, 15280, 16480, 19673, 24448, 26368, 30560, 32960, 39346, 48896, 61120, 65920, 78692, 98365, 122240, 131840, 157384, 196730, 244480, 314768, 393460, 629536, 786920, 1259072, 1573840, 2518144, 3147680, 5036288, 6295360, 12590720, 25181440]

約数ペア:

[(1, 25181440), (2, 12590720), (4, 6295360), (5, 5036288), (8, 3147680), (10, 2518144), (16, 1573840), (20, 1259072), (32, 786920), (40, 629536), (64, 393460), (80, 314768), (103, 244480), (128, 196730), (160, 157384), (191, 131840), (206, 122240), (256, 98365), (320, 78692), (382, 65920), (412, 61120), (515, 48896), (640, 39346), (764, 32960), (824, 30560), (955, 26368), (1030, 24448), (1280, 19673), (1528, 16480), (1648, 15280), (1910, 13184), (2060, 12224), (3056, 8240), (3296, 7640), (3820, 6592), (4120, 6112)]