19844440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{379}}^1$

素因数の和:425

約数の個数: 128

約数和(自身を含む): 59097600

約数和(自身を除く): 39253160

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 17, 20, 22, 28, 34, 35, 40, 44, 55, 56, 68, 70, 77, 85, 88, 110, 119, 136, 140, 154, 170, 187, 220, 238, 280, 308, 340, 374, 379, 385, 440, 476, 595, 616, 680, 748, 758, 770, 935, 952, 1190, 1309, 1496, 1516, 1540, 1870, 1895, 2380, 2618, 2653, 3032, 3080, 3740, 3790, 4169, 4760, 5236, 5306, 6443, 6545, 7480, 7580, 8338, 10472, 10612, 12886, 13090, 13265, 15160, 16676, 20845, 21224, 25772, 26180, 26530, 29183, 32215, 33352, 41690, 45101, 51544, 52360, 53060, 58366, 64430, 70873, 83380, 90202, 106120, 116732, 128860, 141746, 145915, 166760, 180404, 225505, 233464, 257720, 283492, 291830, 354365, 360808, 451010, 496111, 566984, 583660, 708730, 902020, 992222, 1167320, 1417460, 1804040, 1984444, 2480555, 2834920, 3968888, 4961110, 9922220, 19844440]

約数ペア:

[(1, 19844440), (2, 9922220), (4, 4961110), (5, 3968888), (7, 2834920), (8, 2480555), (10, 1984444), (11, 1804040), (14, 1417460), (17, 1167320), (20, 992222), (22, 902020), (28, 708730), (34, 583660), (35, 566984), (40, 496111), (44, 451010), (55, 360808), (56, 354365), (68, 291830), (70, 283492), (77, 257720), (85, 233464), (88, 225505), (110, 180404), (119, 166760), (136, 145915), (140, 141746), (154, 128860), (170, 116732), (187, 106120), (220, 90202), (238, 83380), (280, 70873), (308, 64430), (340, 58366), (374, 53060), (379, 52360), (385, 51544), (440, 45101), (476, 41690), (595, 33352), (616, 32215), (680, 29183), (748, 26530), (758, 26180), (770, 25772), (935, 21224), (952, 20845), (1190, 16676), (1309, 15160), (1496, 13265), (1516, 13090), (1540, 12886), (1870, 10612), (1895, 10472), (2380, 8338), (2618, 7580), (2653, 7480), (3032, 6545), (3080, 6443), (3740, 5306), (3790, 5236), (4169, 4760)]