67446640

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{20563}}^1$

素因数の和:20617

約数の個数: 40

約数和(自身を含む): 160645968

約数和(自身を除く): 93199328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 20563, 41126, 82252, 102815, 164504, 205630, 329008, 411260, 822520, 843083, 1645040, 1686166, 3372332, 4215415, 6744664, 8430830, 13489328, 16861660, 33723320, 67446640]

約数ペア:

[(1, 67446640), (2, 33723320), (4, 16861660), (5, 13489328), (8, 8430830), (10, 6744664), (16, 4215415), (20, 3372332), (40, 1686166), (41, 1645040), (80, 843083), (82, 822520), (164, 411260), (205, 329008), (328, 205630), (410, 164504), (656, 102815), (820, 82252), (1640, 41126), (3280, 20563)]