16397620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{829}}^1$

素因数の和:904

約数の個数: 48

約数和(自身を含む): 36812160

約数和(自身を除く): 20414540

約数列:

[1, 2, 4, 5, 10, 20, 23, 43, 46, 86, 92, 115, 172, 215, 230, 430, 460, 829, 860, 989, 1658, 1978, 3316, 3956, 4145, 4945, 8290, 9890, 16580, 19067, 19780, 35647, 38134, 71294, 76268, 95335, 142588, 178235, 190670, 356470, 381340, 712940, 819881, 1639762, 3279524, 4099405, 8198810, 16397620]

約数ペア:

[(1, 16397620), (2, 8198810), (4, 4099405), (5, 3279524), (10, 1639762), (20, 819881), (23, 712940), (43, 381340), (46, 356470), (86, 190670), (92, 178235), (115, 142588), (172, 95335), (215, 76268), (230, 71294), (430, 38134), (460, 35647), (829, 19780), (860, 19067), (989, 16580), (1658, 9890), (1978, 8290), (3316, 4945), (3956, 4145)]