399383760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{1291}}^1$

素因数の和:2596

約数の個数: 80

約数和(自身を含む): 1240009920

約数和(自身を除く): 840626160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1289, 1291, 2578, 2582, 3867, 3873, 5156, 5164, 6445, 6455, 7734, 7746, 10312, 10328, 12890, 12910, 15468, 15492, 19335, 19365, 20624, 20656, 25780, 25820, 30936, 30984, 38670, 38730, 51560, 51640, 61872, 61968, 77340, 77460, 103120, 103280, 154680, 154920, 309360, 309840, 1664099, 3328198, 4992297, 6656396, 8320495, 9984594, 13312792, 16640990, 19969188, 24961485, 26625584, 33281980, 39938376, 49922970, 66563960, 79876752, 99845940, 133127920, 199691880, 399383760]

約数ペア:

[(1, 399383760), (2, 199691880), (3, 133127920), (4, 99845940), (5, 79876752), (6, 66563960), (8, 49922970), (10, 39938376), (12, 33281980), (15, 26625584), (16, 24961485), (20, 19969188), (24, 16640990), (30, 13312792), (40, 9984594), (48, 8320495), (60, 6656396), (80, 4992297), (120, 3328198), (240, 1664099), (1289, 309840), (1291, 309360), (2578, 154920), (2582, 154680), (3867, 103280), (3873, 103120), (5156, 77460), (5164, 77340), (6445, 61968), (6455, 61872), (7734, 51640), (7746, 51560), (10312, 38730), (10328, 38670), (12890, 30984), (12910, 30936), (15468, 25820), (15492, 25780), (19335, 20656), (19365, 20624)]