213868690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1471}}^1$

素因数の和:1583

約数の個数: 64

約数和(自身を含む): 461242368

約数和(自身を除く): 247373678

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 67, 70, 134, 155, 217, 310, 335, 434, 469, 670, 938, 1085, 1471, 2077, 2170, 2345, 2942, 4154, 4690, 7355, 10297, 10385, 14539, 14710, 20594, 20770, 29078, 45601, 51485, 72695, 91202, 98557, 102970, 145390, 197114, 228005, 319207, 456010, 492785, 638414, 689899, 985570, 1379798, 1596035, 3055267, 3192070, 3449495, 6110534, 6898990, 15276335, 21386869, 30552670, 42773738, 106934345, 213868690]

約数ペア:

[(1, 213868690), (2, 106934345), (5, 42773738), (7, 30552670), (10, 21386869), (14, 15276335), (31, 6898990), (35, 6110534), (62, 3449495), (67, 3192070), (70, 3055267), (134, 1596035), (155, 1379798), (217, 985570), (310, 689899), (335, 638414), (434, 492785), (469, 456010), (670, 319207), (938, 228005), (1085, 197114), (1471, 145390), (2077, 102970), (2170, 98557), (2345, 91202), (2942, 72695), (4154, 51485), (4690, 45601), (7355, 29078), (10297, 20770), (10385, 20594), (14539, 14710)]