257383390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{75479}}^1$

素因数の和:75528

約数の個数: 32

約数和(自身を含む): 521717760

約数和(自身を除く): 264334370

約数列:

[1, 2, 5, 10, 11, 22, 31, 55, 62, 110, 155, 310, 341, 682, 1705, 3410, 75479, 150958, 377395, 754790, 830269, 1660538, 2339849, 4151345, 4679698, 8302690, 11699245, 23398490, 25738339, 51476678, 128691695, 257383390]

約数ペア:

[(1, 257383390), (2, 128691695), (5, 51476678), (10, 25738339), (11, 23398490), (22, 11699245), (31, 8302690), (55, 4679698), (62, 4151345), (110, 2339849), (155, 1660538), (310, 830269), (341, 754790), (682, 377395), (1705, 150958), (3410, 75479)]