18744880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1$

素因数の和:227

約数の個数: 160

約数和(自身を含む): 57853440

約数和(自身を除く): 39108560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 17, 20, 22, 28, 34, 35, 40, 44, 55, 56, 68, 70, 77, 80, 85, 88, 110, 112, 119, 136, 140, 154, 170, 176, 179, 187, 220, 238, 272, 280, 308, 340, 358, 374, 385, 440, 476, 560, 595, 616, 680, 716, 748, 770, 880, 895, 935, 952, 1190, 1232, 1253, 1309, 1360, 1432, 1496, 1540, 1790, 1870, 1904, 1969, 2380, 2506, 2618, 2864, 2992, 3043, 3080, 3580, 3740, 3938, 4760, 5012, 5236, 6086, 6160, 6265, 6545, 7160, 7480, 7876, 9520, 9845, 10024, 10472, 12172, 12530, 13090, 13783, 14320, 14960, 15215, 15752, 19690, 20048, 20944, 21301, 24344, 25060, 26180, 27566, 30430, 31504, 33473, 39380, 42602, 48688, 50120, 52360, 55132, 60860, 66946, 68915, 78760, 85204, 100240, 104720, 106505, 110264, 121720, 133892, 137830, 157520, 167365, 170408, 213010, 220528, 234311, 243440, 267784, 275660, 334730, 340816, 426020, 468622, 535568, 551320, 669460, 852040, 937244, 1102640, 1171555, 1338920, 1704080, 1874488, 2343110, 2677840, 3748976, 4686220, 9372440, 18744880]

約数ペア:

[(1, 18744880), (2, 9372440), (4, 4686220), (5, 3748976), (7, 2677840), (8, 2343110), (10, 1874488), (11, 1704080), (14, 1338920), (16, 1171555), (17, 1102640), (20, 937244), (22, 852040), (28, 669460), (34, 551320), (35, 535568), (40, 468622), (44, 426020), (55, 340816), (56, 334730), (68, 275660), (70, 267784), (77, 243440), (80, 234311), (85, 220528), (88, 213010), (110, 170408), (112, 167365), (119, 157520), (136, 137830), (140, 133892), (154, 121720), (170, 110264), (176, 106505), (179, 104720), (187, 100240), (220, 85204), (238, 78760), (272, 68915), (280, 66946), (308, 60860), (340, 55132), (358, 52360), (374, 50120), (385, 48688), (440, 42602), (476, 39380), (560, 33473), (595, 31504), (616, 30430), (680, 27566), (716, 26180), (748, 25060), (770, 24344), (880, 21301), (895, 20944), (935, 20048), (952, 19690), (1190, 15752), (1232, 15215), (1253, 14960), (1309, 14320), (1360, 13783), (1432, 13090), (1496, 12530), (1540, 12172), (1790, 10472), (1870, 10024), (1904, 9845), (1969, 9520), (2380, 7876), (2506, 7480), (2618, 7160), (2864, 6545), (2992, 6265), (3043, 6160), (3080, 6086), (3580, 5236), (3740, 5012), (3938, 4760)]