18113750

素因数分解:

$2^1\times 5^4\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:402

約数の個数: 40

約数和(自身を含む): 34845096

約数和(自身を除く): 16731346

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 125, 215, 250, 337, 430, 625, 674, 1075, 1250, 1685, 2150, 3370, 5375, 8425, 10750, 14491, 16850, 26875, 28982, 42125, 53750, 72455, 84250, 144910, 210625, 362275, 421250, 724550, 1811375, 3622750, 9056875, 18113750]

約数ペア:

[(1, 18113750), (2, 9056875), (5, 3622750), (10, 1811375), (25, 724550), (43, 421250), (50, 362275), (86, 210625), (125, 144910), (215, 84250), (250, 72455), (337, 53750), (430, 42125), (625, 28982), (674, 26875), (1075, 16850), (1250, 14491), (1685, 10750), (2150, 8425), (3370, 5375)]