72903905

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{419}}^1$

素因数の和:553

約数の個数: 32

約数和(自身を含む): 97977600

約数和(自身を除く): 25073695

約数列:

[1, 5, 17, 23, 85, 89, 115, 391, 419, 445, 1513, 1955, 2047, 2095, 7123, 7565, 9637, 10235, 34799, 35615, 37291, 48185, 163829, 173995, 186455, 633947, 819145, 857693, 3169735, 4288465, 14580781, 72903905]

約数ペア:

[(1, 72903905), (5, 14580781), (17, 4288465), (23, 3169735), (85, 857693), (89, 819145), (115, 633947), (391, 186455), (419, 173995), (445, 163829), (1513, 48185), (1955, 37291), (2047, 35615), (2095, 34799), (7123, 10235), (7565, 9637)]