153949780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{2719}}^1$

素因数の和:2896

約数の個数: 48

約数和(自身を含む): 342720000

約数和(自身を除く): 188770220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 149, 190, 298, 380, 596, 745, 1490, 2719, 2831, 2980, 5438, 5662, 10876, 11324, 13595, 14155, 27190, 28310, 51661, 54380, 56620, 103322, 206644, 258305, 405131, 516610, 810262, 1033220, 1620524, 2025655, 4051310, 7697489, 8102620, 15394978, 30789956, 38487445, 76974890, 153949780]

約数ペア:

[(1, 153949780), (2, 76974890), (4, 38487445), (5, 30789956), (10, 15394978), (19, 8102620), (20, 7697489), (38, 4051310), (76, 2025655), (95, 1620524), (149, 1033220), (190, 810262), (298, 516610), (380, 405131), (596, 258305), (745, 206644), (1490, 103322), (2719, 56620), (2831, 54380), (2980, 51661), (5438, 28310), (5662, 27190), (10876, 14155), (11324, 13595)]