19128980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:153

約数の個数: 96

約数和(自身を含む): 46569600

約数和(自身を除く): 27440620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 43, 52, 58, 59, 65, 86, 116, 118, 130, 145, 172, 215, 236, 260, 290, 295, 377, 430, 559, 580, 590, 754, 767, 860, 1118, 1180, 1247, 1508, 1534, 1711, 1885, 2236, 2494, 2537, 2795, 3068, 3422, 3770, 3835, 4988, 5074, 5590, 6235, 6844, 7540, 7670, 8555, 10148, 11180, 12470, 12685, 15340, 16211, 17110, 22243, 24940, 25370, 32422, 32981, 34220, 44486, 50740, 64844, 65962, 73573, 81055, 88972, 111215, 131924, 147146, 162110, 164905, 222430, 294292, 324220, 329810, 367865, 444860, 659620, 735730, 956449, 1471460, 1912898, 3825796, 4782245, 9564490, 19128980]

約数ペア:

[(1, 19128980), (2, 9564490), (4, 4782245), (5, 3825796), (10, 1912898), (13, 1471460), (20, 956449), (26, 735730), (29, 659620), (43, 444860), (52, 367865), (58, 329810), (59, 324220), (65, 294292), (86, 222430), (116, 164905), (118, 162110), (130, 147146), (145, 131924), (172, 111215), (215, 88972), (236, 81055), (260, 73573), (290, 65962), (295, 64844), (377, 50740), (430, 44486), (559, 34220), (580, 32981), (590, 32422), (754, 25370), (767, 24940), (860, 22243), (1118, 17110), (1180, 16211), (1247, 15340), (1508, 12685), (1534, 12470), (1711, 11180), (1885, 10148), (2236, 8555), (2494, 7670), (2537, 7540), (2795, 6844), (3068, 6235), (3422, 5590), (3770, 5074), (3835, 4988)]