19446920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15683}}^1$

素因数の和:15725

約数の個数: 32

約数和(自身を含む): 45169920

約数和(自身を除く): 25723000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 15683, 31366, 62732, 78415, 125464, 156830, 313660, 486173, 627320, 972346, 1944692, 2430865, 3889384, 4861730, 9723460, 19446920]

約数ペア:

[(1, 19446920), (2, 9723460), (4, 4861730), (5, 3889384), (8, 2430865), (10, 1944692), (20, 972346), (31, 627320), (40, 486173), (62, 313660), (124, 156830), (155, 125464), (248, 78415), (310, 62732), (620, 31366), (1240, 15683)]