4002140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 9072000

約数和(自身を除く): 5069860

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 79, 85, 149, 158, 170, 298, 316, 340, 395, 596, 745, 790, 1343, 1490, 1580, 2533, 2686, 2980, 5066, 5372, 6715, 10132, 11771, 12665, 13430, 23542, 25330, 26860, 47084, 50660, 58855, 117710, 200107, 235420, 400214, 800428, 1000535, 2001070, 4002140]

約数ペア:

[(1, 4002140), (2, 2001070), (4, 1000535), (5, 800428), (10, 400214), (17, 235420), (20, 200107), (34, 117710), (68, 58855), (79, 50660), (85, 47084), (149, 26860), (158, 25330), (170, 23542), (298, 13430), (316, 12665), (340, 11771), (395, 10132), (596, 6715), (745, 5372), (790, 5066), (1343, 2980), (1490, 2686), (1580, 2533)]