17950120

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 42768000

約数和(自身を除く): 24817880

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 109, 115, 179, 184, 218, 230, 358, 436, 460, 545, 716, 872, 895, 920, 1090, 1432, 1790, 2180, 2507, 3580, 4117, 4360, 5014, 7160, 8234, 10028, 12535, 16468, 19511, 20056, 20585, 25070, 32936, 39022, 41170, 50140, 78044, 82340, 97555, 100280, 156088, 164680, 195110, 390220, 448753, 780440, 897506, 1795012, 2243765, 3590024, 4487530, 8975060, 17950120]

約数ペア:

[(1, 17950120), (2, 8975060), (4, 4487530), (5, 3590024), (8, 2243765), (10, 1795012), (20, 897506), (23, 780440), (40, 448753), (46, 390220), (92, 195110), (109, 164680), (115, 156088), (179, 100280), (184, 97555), (218, 82340), (230, 78044), (358, 50140), (436, 41170), (460, 39022), (545, 32936), (716, 25070), (872, 20585), (895, 20056), (920, 19511), (1090, 16468), (1432, 12535), (1790, 10028), (2180, 8234), (2507, 7160), (3580, 5014), (4117, 4360)]