918449560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{691}}^1$

素因数の和:857

約数の個数: 128

約数和(自身を含む): 2439383040

約数和(自身を除く): 1520933480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 56, 70, 94, 101, 140, 188, 202, 235, 280, 329, 376, 404, 470, 505, 658, 691, 707, 808, 940, 1010, 1316, 1382, 1414, 1645, 1880, 2020, 2632, 2764, 2828, 3290, 3455, 3535, 4040, 4747, 4837, 5528, 5656, 6580, 6910, 7070, 9494, 9674, 13160, 13820, 14140, 18988, 19348, 23735, 24185, 27640, 28280, 32477, 33229, 37976, 38696, 47470, 48370, 64954, 66458, 69791, 94940, 96740, 129908, 132916, 139582, 162385, 166145, 189880, 193480, 227339, 259816, 265832, 279164, 324770, 332290, 348955, 454678, 488537, 558328, 649540, 664580, 697910, 909356, 977074, 1136695, 1299080, 1329160, 1395820, 1818712, 1954148, 2273390, 2442685, 2791640, 3280177, 3908296, 4546780, 4885370, 6560354, 9093560, 9770740, 13120708, 16400885, 19541480, 22961239, 26241416, 32801770, 45922478, 65603540, 91844956, 114806195, 131207080, 183689912, 229612390, 459224780, 918449560]

約数ペア:

[(1, 918449560), (2, 459224780), (4, 229612390), (5, 183689912), (7, 131207080), (8, 114806195), (10, 91844956), (14, 65603540), (20, 45922478), (28, 32801770), (35, 26241416), (40, 22961239), (47, 19541480), (56, 16400885), (70, 13120708), (94, 9770740), (101, 9093560), (140, 6560354), (188, 4885370), (202, 4546780), (235, 3908296), (280, 3280177), (329, 2791640), (376, 2442685), (404, 2273390), (470, 1954148), (505, 1818712), (658, 1395820), (691, 1329160), (707, 1299080), (808, 1136695), (940, 977074), (1010, 909356), (1316, 697910), (1382, 664580), (1414, 649540), (1645, 558328), (1880, 488537), (2020, 454678), (2632, 348955), (2764, 332290), (2828, 324770), (3290, 279164), (3455, 265832), (3535, 259816), (4040, 227339), (4747, 193480), (4837, 189880), (5528, 166145), (5656, 162385), (6580, 139582), (6910, 132916), (7070, 129908), (9494, 96740), (9674, 94940), (13160, 69791), (13820, 66458), (14140, 64954), (18988, 48370), (19348, 47470), (23735, 38696), (24185, 37976), (27640, 33229), (28280, 32477)]