290094040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{118891}}^1$

素因数の和:118963

約数の個数: 32

約数和(自身を含む): 663417360

約数和(自身を除く): 373323320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 118891, 237782, 475564, 594455, 951128, 1188910, 2377820, 4755640, 7252351, 14504702, 29009404, 36261755, 58018808, 72523510, 145047020, 290094040]

約数ペア:

[(1, 290094040), (2, 145047020), (4, 72523510), (5, 58018808), (8, 36261755), (10, 29009404), (20, 14504702), (40, 7252351), (61, 4755640), (122, 2377820), (244, 1188910), (305, 951128), (488, 594455), (610, 475564), (1220, 237782), (2440, 118891)]