39379160

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16139}}^1$

素因数の和:16211

約数の個数: 32

約数和(自身を含む): 90061200

約数和(自身を除く): 50682040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 16139, 32278, 64556, 80695, 129112, 161390, 322780, 645560, 984479, 1968958, 3937916, 4922395, 7875832, 9844790, 19689580, 39379160]

約数ペア:

[(1, 39379160), (2, 19689580), (4, 9844790), (5, 7875832), (8, 4922395), (10, 3937916), (20, 1968958), (40, 984479), (61, 645560), (122, 322780), (244, 161390), (305, 129112), (488, 80695), (610, 64556), (1220, 32278), (2440, 16139)]