28151036505

素因数分解:

$3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1\times {\mathrm{20023}}^1$

素因数の和:20390

約数の個数: 48

約数和(自身を含む): 49355155200

約数和(自身を除く): 21204118695

約数列:

[1, 3, 5, 9, 15, 45, 157, 199, 471, 597, 785, 995, 1413, 1791, 2355, 2985, 7065, 8955, 20023, 31243, 60069, 93729, 100115, 156215, 180207, 281187, 300345, 468645, 901035, 1405935, 3143611, 3984577, 9430833, 11953731, 15718055, 19922885, 28292499, 35861193, 47154165, 59768655, 141462495, 179305965, 625578589, 1876735767, 3127892945, 5630207301, 9383678835, 28151036505]

約数ペア:

[(1, 28151036505), (3, 9383678835), (5, 5630207301), (9, 3127892945), (15, 1876735767), (45, 625578589), (157, 179305965), (199, 141462495), (471, 59768655), (597, 47154165), (785, 35861193), (995, 28292499), (1413, 19922885), (1791, 15718055), (2355, 11953731), (2985, 9430833), (7065, 3984577), (8955, 3143611), (20023, 1405935), (31243, 901035), (60069, 468645), (93729, 300345), (100115, 281187), (156215, 180207)]