81914090

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{1901}}^1$

素因数の和:2078

約数の個数: 32

約数和(自身を含む): 153377280

約数和(自身を除く): 71463190

約数列:

[1, 2, 5, 10, 31, 62, 139, 155, 278, 310, 695, 1390, 1901, 3802, 4309, 8618, 9505, 19010, 21545, 43090, 58931, 117862, 264239, 294655, 528478, 589310, 1321195, 2642390, 8191409, 16382818, 40957045, 81914090]

約数ペア:

[(1, 81914090), (2, 40957045), (5, 16382818), (10, 8191409), (31, 2642390), (62, 1321195), (139, 589310), (155, 528478), (278, 294655), (310, 264239), (695, 117862), (1390, 58931), (1901, 43090), (3802, 21545), (4309, 19010), (8618, 9505)]