3908680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:206

約数の個数: 64

約数和(自身を含む): 9576000

約数和(自身を除く): 5667320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 37, 38, 40, 74, 76, 95, 139, 148, 152, 185, 190, 278, 296, 370, 380, 556, 695, 703, 740, 760, 1112, 1390, 1406, 1480, 2641, 2780, 2812, 3515, 5143, 5282, 5560, 5624, 7030, 10286, 10564, 13205, 14060, 20572, 21128, 25715, 26410, 28120, 41144, 51430, 52820, 97717, 102860, 105640, 195434, 205720, 390868, 488585, 781736, 977170, 1954340, 3908680]

約数ペア:

[(1, 3908680), (2, 1954340), (4, 977170), (5, 781736), (8, 488585), (10, 390868), (19, 205720), (20, 195434), (37, 105640), (38, 102860), (40, 97717), (74, 52820), (76, 51430), (95, 41144), (139, 28120), (148, 26410), (152, 25715), (185, 21128), (190, 20572), (278, 14060), (296, 13205), (370, 10564), (380, 10286), (556, 7030), (695, 5624), (703, 5560), (740, 5282), (760, 5143), (1112, 3515), (1390, 2812), (1406, 2780), (1480, 2641)]