172816475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1009}}^1$

素因数の和:1080

約数の個数: 48

約数和(自身を含む): 252483840

約数和(自身を除く): 79667365

約数列:

[1, 5, 13, 17, 25, 31, 65, 85, 155, 221, 325, 403, 425, 527, 775, 1009, 1105, 2015, 2635, 5045, 5525, 6851, 10075, 13117, 13175, 17153, 25225, 31279, 34255, 65585, 85765, 156395, 171275, 222989, 327925, 406627, 428825, 531743, 781975, 1114945, 2033135, 2658715, 5574725, 6912659, 10165675, 13293575, 34563295, 172816475]

約数ペア:

[(1, 172816475), (5, 34563295), (13, 13293575), (17, 10165675), (25, 6912659), (31, 5574725), (65, 2658715), (85, 2033135), (155, 1114945), (221, 781975), (325, 531743), (403, 428825), (425, 406627), (527, 327925), (775, 222989), (1009, 171275), (1105, 156395), (2015, 85765), (2635, 65585), (5045, 34255), (5525, 31279), (6851, 25225), (10075, 17153), (13117, 13175)]