81228280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{41443}}^1$

素因数の和:41468

約数の個数: 48

約数和(自身を含む): 212607720

約数和(自身を除く): 131379440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 41443, 82886, 165772, 207215, 290101, 331544, 414430, 580202, 828860, 1160404, 1450505, 1657720, 2030707, 2320808, 2901010, 4061414, 5802020, 8122828, 10153535, 11604040, 16245656, 20307070, 40614140, 81228280]

約数ペア:

[(1, 81228280), (2, 40614140), (4, 20307070), (5, 16245656), (7, 11604040), (8, 10153535), (10, 8122828), (14, 5802020), (20, 4061414), (28, 2901010), (35, 2320808), (40, 2030707), (49, 1657720), (56, 1450505), (70, 1160404), (98, 828860), (140, 580202), (196, 414430), (245, 331544), (280, 290101), (392, 207215), (490, 165772), (980, 82886), (1960, 41443)]