16720020

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{10321}}^1$

素因数の和:10342

約数の個数: 60

約数和(自身を含む): 52456404

約数和(自身を除く): 35736384

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 10321, 20642, 30963, 41284, 51605, 61926, 92889, 103210, 123852, 154815, 185778, 206420, 278667, 309630, 371556, 464445, 557334, 619260, 836001, 928890, 1114668, 1393335, 1672002, 1857780, 2786670, 3344004, 4180005, 5573340, 8360010, 16720020]

約数ペア:

[(1, 16720020), (2, 8360010), (3, 5573340), (4, 4180005), (5, 3344004), (6, 2786670), (9, 1857780), (10, 1672002), (12, 1393335), (15, 1114668), (18, 928890), (20, 836001), (27, 619260), (30, 557334), (36, 464445), (45, 371556), (54, 309630), (60, 278667), (81, 206420), (90, 185778), (108, 154815), (135, 123852), (162, 103210), (180, 92889), (270, 61926), (324, 51605), (405, 41284), (540, 30963), (810, 20642), (1620, 10321)]