129720640

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{8273}}^1$

素因数の和:8304

約数の個数: 84

約数和(自身を含む): 359372916

約数和(自身を除く): 229652276

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 784, 980, 1120, 1568, 1960, 2240, 3136, 3920, 7840, 8273, 15680, 16546, 33092, 41365, 57911, 66184, 82730, 115822, 132368, 165460, 231644, 264736, 289555, 330920, 405377, 463288, 529472, 579110, 661840, 810754, 926576, 1158220, 1323680, 1621508, 1853152, 2026885, 2316440, 2647360, 3243016, 3706304, 4053770, 4632880, 6486032, 8107540, 9265760, 12972064, 16215080, 18531520, 25944128, 32430160, 64860320, 129720640]

約数ペア:

[(1, 129720640), (2, 64860320), (4, 32430160), (5, 25944128), (7, 18531520), (8, 16215080), (10, 12972064), (14, 9265760), (16, 8107540), (20, 6486032), (28, 4632880), (32, 4053770), (35, 3706304), (40, 3243016), (49, 2647360), (56, 2316440), (64, 2026885), (70, 1853152), (80, 1621508), (98, 1323680), (112, 1158220), (140, 926576), (160, 810754), (196, 661840), (224, 579110), (245, 529472), (280, 463288), (320, 405377), (392, 330920), (448, 289555), (490, 264736), (560, 231644), (784, 165460), (980, 132368), (1120, 115822), (1568, 82730), (1960, 66184), (2240, 57911), (3136, 41365), (3920, 33092), (7840, 16546), (8273, 15680)]