19482980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:177

約数の個数: 96

約数和(自身を含む): 48384000

約数和(自身を除く): 28901020

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 59, 76, 79, 95, 110, 118, 158, 190, 209, 220, 236, 295, 316, 380, 395, 418, 590, 649, 790, 836, 869, 1045, 1121, 1180, 1298, 1501, 1580, 1738, 2090, 2242, 2596, 3002, 3245, 3476, 4180, 4345, 4484, 4661, 5605, 6004, 6490, 7505, 8690, 9322, 11210, 12331, 12980, 15010, 16511, 17380, 18644, 22420, 23305, 24662, 30020, 33022, 46610, 49324, 51271, 61655, 66044, 82555, 88559, 93220, 102542, 123310, 165110, 177118, 205084, 246620, 256355, 330220, 354236, 442795, 512710, 885590, 974149, 1025420, 1771180, 1948298, 3896596, 4870745, 9741490, 19482980]

約数ペア:

[(1, 19482980), (2, 9741490), (4, 4870745), (5, 3896596), (10, 1948298), (11, 1771180), (19, 1025420), (20, 974149), (22, 885590), (38, 512710), (44, 442795), (55, 354236), (59, 330220), (76, 256355), (79, 246620), (95, 205084), (110, 177118), (118, 165110), (158, 123310), (190, 102542), (209, 93220), (220, 88559), (236, 82555), (295, 66044), (316, 61655), (380, 51271), (395, 49324), (418, 46610), (590, 33022), (649, 30020), (790, 24662), (836, 23305), (869, 22420), (1045, 18644), (1121, 17380), (1180, 16511), (1298, 15010), (1501, 12980), (1580, 12331), (1738, 11210), (2090, 9322), (2242, 8690), (2596, 7505), (3002, 6490), (3245, 6004), (3476, 5605), (4180, 4661), (4345, 4484)]