19640400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1259}}^1$

素因数の和:1293

約数の個数: 120

約数和(自身を含む): 67808160

約数和(自身を除く): 48167760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 39, 40, 48, 50, 52, 60, 65, 75, 78, 80, 100, 104, 120, 130, 150, 156, 195, 200, 208, 240, 260, 300, 312, 325, 390, 400, 520, 600, 624, 650, 780, 975, 1040, 1200, 1259, 1300, 1560, 1950, 2518, 2600, 3120, 3777, 3900, 5036, 5200, 6295, 7554, 7800, 10072, 12590, 15108, 15600, 16367, 18885, 20144, 25180, 30216, 31475, 32734, 37770, 49101, 50360, 60432, 62950, 65468, 75540, 81835, 94425, 98202, 100720, 125900, 130936, 151080, 163670, 188850, 196404, 245505, 251800, 261872, 302160, 327340, 377700, 392808, 409175, 491010, 503600, 654680, 755400, 785616, 818350, 982020, 1227525, 1309360, 1510800, 1636700, 1964040, 2455050, 3273400, 3928080, 4910100, 6546800, 9820200, 19640400]

約数ペア:

[(1, 19640400), (2, 9820200), (3, 6546800), (4, 4910100), (5, 3928080), (6, 3273400), (8, 2455050), (10, 1964040), (12, 1636700), (13, 1510800), (15, 1309360), (16, 1227525), (20, 982020), (24, 818350), (25, 785616), (26, 755400), (30, 654680), (39, 503600), (40, 491010), (48, 409175), (50, 392808), (52, 377700), (60, 327340), (65, 302160), (75, 261872), (78, 251800), (80, 245505), (100, 196404), (104, 188850), (120, 163670), (130, 151080), (150, 130936), (156, 125900), (195, 100720), (200, 98202), (208, 94425), (240, 81835), (260, 75540), (300, 65468), (312, 62950), (325, 60432), (390, 50360), (400, 49101), (520, 37770), (600, 32734), (624, 31475), (650, 30216), (780, 25180), (975, 20144), (1040, 18885), (1200, 16367), (1259, 15600), (1300, 15108), (1560, 12590), (1950, 10072), (2518, 7800), (2600, 7554), (3120, 6295), (3777, 5200), (3900, 5036)]