8638640

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1301}}^1$

素因数の和:1397

約数の個数: 40

約数和(自身を含む): 20342448

約数和(自身を除く): 11703808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1301, 1328, 1660, 2602, 3320, 5204, 6505, 6640, 10408, 13010, 20816, 26020, 52040, 104080, 107983, 215966, 431932, 539915, 863864, 1079830, 1727728, 2159660, 4319320, 8638640]

約数ペア:

[(1, 8638640), (2, 4319320), (4, 2159660), (5, 1727728), (8, 1079830), (10, 863864), (16, 539915), (20, 431932), (40, 215966), (80, 107983), (83, 104080), (166, 52040), (332, 26020), (415, 20816), (664, 13010), (830, 10408), (1301, 6640), (1328, 6505), (1660, 5204), (2602, 3320)]