20623525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:166

約数の個数: 48

約数和(自身を含む): 29998080

約数和(自身を除く): 9374555

約数列:

[1, 5, 13, 23, 25, 31, 65, 89, 115, 155, 299, 325, 403, 445, 575, 713, 775, 1157, 1495, 2015, 2047, 2225, 2759, 3565, 5785, 7475, 9269, 10075, 10235, 13795, 17825, 26611, 28925, 35867, 46345, 51175, 63457, 68975, 133055, 179335, 231725, 317285, 665275, 824941, 896675, 1586425, 4124705, 20623525]

約数ペア:

[(1, 20623525), (5, 4124705), (13, 1586425), (23, 896675), (25, 824941), (31, 665275), (65, 317285), (89, 231725), (115, 179335), (155, 133055), (299, 68975), (325, 63457), (403, 51175), (445, 46345), (575, 35867), (713, 28925), (775, 26611), (1157, 17825), (1495, 13795), (2015, 10235), (2047, 10075), (2225, 9269), (2759, 7475), (3565, 5785)]