19132040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7841}}^1$

素因数の和:7913

約数の個数: 32

約数和(自身を含む): 43758360

約数和(自身を除く): 24626320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 7841, 15682, 31364, 39205, 62728, 78410, 156820, 313640, 478301, 956602, 1913204, 2391505, 3826408, 4783010, 9566020, 19132040]

約数ペア:

[(1, 19132040), (2, 9566020), (4, 4783010), (5, 3826408), (8, 2391505), (10, 1913204), (20, 956602), (40, 478301), (61, 313640), (122, 156820), (244, 78410), (305, 62728), (488, 39205), (610, 31364), (1220, 15682), (2440, 7841)]