64980460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{191119}}^1$

素因数の和:191145

約数の個数: 24

約数和(自身を含む): 144486720

約数和(自身を除く): 79506260

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 191119, 382238, 764476, 955595, 1911190, 3249023, 3822380, 6498046, 12996092, 16245115, 32490230, 64980460]

約数ペア:

[(1, 64980460), (2, 32490230), (4, 16245115), (5, 12996092), (10, 6498046), (17, 3822380), (20, 3249023), (34, 1911190), (68, 955595), (85, 764476), (170, 382238), (340, 191119)]