131310920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{677}}^1$

素因数の和:1074

約数の個数: 64

約数和(自身を含む): 319500720

約数和(自身を除く): 188189800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 373, 520, 677, 746, 1354, 1492, 1865, 2708, 2984, 3385, 3730, 4849, 5416, 6770, 7460, 8801, 9698, 13540, 14920, 17602, 19396, 24245, 27080, 35204, 38792, 44005, 48490, 70408, 88010, 96980, 176020, 193960, 252521, 352040, 505042, 1010084, 1262605, 2020168, 2525210, 3282773, 5050420, 6565546, 10100840, 13131092, 16413865, 26262184, 32827730, 65655460, 131310920]

約数ペア:

[(1, 131310920), (2, 65655460), (4, 32827730), (5, 26262184), (8, 16413865), (10, 13131092), (13, 10100840), (20, 6565546), (26, 5050420), (40, 3282773), (52, 2525210), (65, 2020168), (104, 1262605), (130, 1010084), (260, 505042), (373, 352040), (520, 252521), (677, 193960), (746, 176020), (1354, 96980), (1492, 88010), (1865, 70408), (2708, 48490), (2984, 44005), (3385, 38792), (3730, 35204), (4849, 27080), (5416, 24245), (6770, 19396), (7460, 17602), (8801, 14920), (9698, 13540)]