15678618980

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{347}}^1\times {\mathrm{16253}}^1$

素因数の和:16748

約数の個数: 48

約数和(自身を含む): 33259584960

約数和(自身を除く): 17580965980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 347, 556, 694, 695, 1388, 1390, 1735, 2780, 3470, 6940, 16253, 32506, 48233, 65012, 81265, 96466, 162530, 192932, 241165, 325060, 482330, 964660, 2259167, 4518334, 5639791, 9036668, 11279582, 11295835, 22559164, 22591670, 28198955, 45183340, 56397910, 112795820, 783930949, 1567861898, 3135723796, 3919654745, 7839309490, 15678618980]

約数ペア:

[(1, 15678618980), (2, 7839309490), (4, 3919654745), (5, 3135723796), (10, 1567861898), (20, 783930949), (139, 112795820), (278, 56397910), (347, 45183340), (556, 28198955), (694, 22591670), (695, 22559164), (1388, 11295835), (1390, 11279582), (1735, 9036668), (2780, 5639791), (3470, 4518334), (6940, 2259167), (16253, 964660), (32506, 482330), (48233, 325060), (65012, 241165), (81265, 192932), (96466, 162530)]