31121025

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{541}}^1$

素因数の和:626

約数の個数: 48

約数和(自身を含む): 56454720

約数和(自身を除く): 25333695

約数列:

[1, 3, 5, 13, 15, 25, 39, 59, 65, 75, 177, 195, 295, 325, 541, 767, 885, 975, 1475, 1623, 2301, 2705, 3835, 4425, 7033, 8115, 11505, 13525, 19175, 21099, 31919, 35165, 40575, 57525, 95757, 105495, 159595, 175825, 414947, 478785, 527475, 797975, 1244841, 2074735, 2393925, 6224205, 10373675, 31121025]

約数ペア:

[(1, 31121025), (3, 10373675), (5, 6224205), (13, 2393925), (15, 2074735), (25, 1244841), (39, 797975), (59, 527475), (65, 478785), (75, 414947), (177, 175825), (195, 159595), (295, 105495), (325, 95757), (541, 57525), (767, 40575), (885, 35165), (975, 31919), (1475, 21099), (1623, 19175), (2301, 13525), (2705, 11505), (3835, 8115), (4425, 7033)]