217400025

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{653}}^1$

素因数の和:882

約数の個数: 48

約数和(自身を含む): 377582976

約数和(自身を除く): 160182951

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 193, 345, 575, 579, 653, 965, 1725, 1959, 2895, 3265, 4439, 4825, 9795, 13317, 14475, 15019, 16325, 22195, 45057, 48975, 66585, 75095, 110975, 126029, 225285, 332925, 375475, 378087, 630145, 1126425, 1890435, 2898667, 3150725, 8696001, 9452175, 14493335, 43480005, 72466675, 217400025]

約数ペア:

[(1, 217400025), (3, 72466675), (5, 43480005), (15, 14493335), (23, 9452175), (25, 8696001), (69, 3150725), (75, 2898667), (115, 1890435), (193, 1126425), (345, 630145), (575, 378087), (579, 375475), (653, 332925), (965, 225285), (1725, 126029), (1959, 110975), (2895, 75095), (3265, 66585), (4439, 48975), (4825, 45057), (9795, 22195), (13317, 16325), (14475, 15019)]