19653900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^3\times {\mathrm{191}}^1$

素因数の和:229

約数の個数: 144

約数和(自身を含む): 66662400

約数和(自身を除く): 47008500

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 49, 50, 60, 70, 75, 84, 98, 100, 105, 140, 147, 150, 175, 191, 196, 210, 245, 294, 300, 343, 350, 382, 420, 490, 525, 573, 588, 686, 700, 735, 764, 955, 980, 1029, 1050, 1146, 1225, 1337, 1372, 1470, 1715, 1910, 2058, 2100, 2292, 2450, 2674, 2865, 2940, 3430, 3675, 3820, 4011, 4116, 4775, 4900, 5145, 5348, 5730, 6685, 6860, 7350, 8022, 8575, 9359, 9550, 10290, 11460, 13370, 14325, 14700, 16044, 17150, 18718, 19100, 20055, 20580, 25725, 26740, 28077, 28650, 33425, 34300, 37436, 40110, 46795, 51450, 56154, 57300, 65513, 66850, 80220, 93590, 100275, 102900, 112308, 131026, 133700, 140385, 187180, 196539, 200550, 233975, 262052, 280770, 327565, 393078, 401100, 467950, 561540, 655130, 701925, 786156, 935900, 982695, 1310260, 1403850, 1637825, 1965390, 2807700, 3275650, 3930780, 4913475, 6551300, 9826950, 19653900]

約数ペア:

[(1, 19653900), (2, 9826950), (3, 6551300), (4, 4913475), (5, 3930780), (6, 3275650), (7, 2807700), (10, 1965390), (12, 1637825), (14, 1403850), (15, 1310260), (20, 982695), (21, 935900), (25, 786156), (28, 701925), (30, 655130), (35, 561540), (42, 467950), (49, 401100), (50, 393078), (60, 327565), (70, 280770), (75, 262052), (84, 233975), (98, 200550), (100, 196539), (105, 187180), (140, 140385), (147, 133700), (150, 131026), (175, 112308), (191, 102900), (196, 100275), (210, 93590), (245, 80220), (294, 66850), (300, 65513), (343, 57300), (350, 56154), (382, 51450), (420, 46795), (490, 40110), (525, 37436), (573, 34300), (588, 33425), (686, 28650), (700, 28077), (735, 26740), (764, 25725), (955, 20580), (980, 20055), (1029, 19100), (1050, 18718), (1146, 17150), (1225, 16044), (1337, 14700), (1372, 14325), (1470, 13370), (1715, 11460), (1910, 10290), (2058, 9550), (2100, 9359), (2292, 8575), (2450, 8022), (2674, 7350), (2865, 6860), (2940, 6685), (3430, 5730), (3675, 5348), (3820, 5145), (4011, 4900), (4116, 4775)]