2171890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:127

約数の個数: 64

約数和(自身を含む): 4976640

約数和(自身を除く): 2804750

約数列:

[1, 2, 5, 7, 10, 14, 19, 23, 35, 38, 46, 70, 71, 95, 115, 133, 142, 161, 190, 230, 266, 322, 355, 437, 497, 665, 710, 805, 874, 994, 1330, 1349, 1610, 1633, 2185, 2485, 2698, 3059, 3266, 4370, 4970, 6118, 6745, 8165, 9443, 11431, 13490, 15295, 16330, 18886, 22862, 30590, 31027, 47215, 57155, 62054, 94430, 114310, 155135, 217189, 310270, 434378, 1085945, 2171890]

約数ペア:

[(1, 2171890), (2, 1085945), (5, 434378), (7, 310270), (10, 217189), (14, 155135), (19, 114310), (23, 94430), (35, 62054), (38, 57155), (46, 47215), (70, 31027), (71, 30590), (95, 22862), (115, 18886), (133, 16330), (142, 15295), (161, 13490), (190, 11431), (230, 9443), (266, 8165), (322, 6745), (355, 6118), (437, 4970), (497, 4370), (665, 3266), (710, 3059), (805, 2698), (874, 2485), (994, 2185), (1330, 1633), (1349, 1610)]