278320180

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1\times {\mathrm{587}}^1$

素因数の和:904

約数の個数: 48

約数和(自身を含む): 593099136

約数和(自身を除く): 314778956

約数列:

[1, 2, 4, 5, 10, 20, 151, 157, 302, 314, 587, 604, 628, 755, 785, 1174, 1510, 1570, 2348, 2935, 3020, 3140, 5870, 11740, 23707, 47414, 88637, 92159, 94828, 118535, 177274, 184318, 237070, 354548, 368636, 443185, 460795, 474140, 886370, 921590, 1772740, 1843180, 13916009, 27832018, 55664036, 69580045, 139160090, 278320180]

約数ペア:

[(1, 278320180), (2, 139160090), (4, 69580045), (5, 55664036), (10, 27832018), (20, 13916009), (151, 1843180), (157, 1772740), (302, 921590), (314, 886370), (587, 474140), (604, 460795), (628, 443185), (755, 368636), (785, 354548), (1174, 237070), (1510, 184318), (1570, 177274), (2348, 118535), (2935, 94828), (3020, 92159), (3140, 88637), (5870, 47414), (11740, 23707)]