278340010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{69067}}^1$

素因数の和:69118

約数の個数: 32

約数和(自身を含む): 556964352

約数和(自身を除く): 278624342

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 69067, 138134, 345335, 690670, 897871, 1795742, 2141077, 4282154, 4489355, 8978710, 10705385, 21410770, 27834001, 55668002, 139170005, 278340010]

約数ペア:

[(1, 278340010), (2, 139170005), (5, 55668002), (10, 27834001), (13, 21410770), (26, 10705385), (31, 8978710), (62, 4489355), (65, 4282154), (130, 2141077), (155, 1795742), (310, 897871), (403, 690670), (806, 345335), (2015, 138134), (4030, 69067)]