389943265

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{1229}}^1$

素因数の和:1377

約数の個数: 32

約数和(自身を含む): 510105600

約数和(自身を除く): 120162335

約数列:

[1, 5, 23, 31, 89, 115, 155, 445, 713, 1229, 2047, 2759, 3565, 6145, 10235, 13795, 28267, 38099, 63457, 109381, 141335, 190495, 317285, 546905, 876277, 2515763, 3390811, 4381385, 12578815, 16954055, 77988653, 389943265]

約数ペア:

[(1, 389943265), (5, 77988653), (23, 16954055), (31, 12578815), (89, 4381385), (115, 3390811), (155, 2515763), (445, 876277), (713, 546905), (1229, 317285), (2047, 190495), (2759, 141335), (3565, 109381), (6145, 63457), (10235, 38099), (13795, 28267)]