18442180840

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1\times {\mathrm{571}}^1$

素因数の和:915

約数の個数: 128

約数和(自身を含む): 43272028800

約数和(自身を除く): 24829847960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 139, 148, 157, 185, 278, 296, 314, 370, 556, 571, 628, 695, 740, 785, 1112, 1142, 1256, 1390, 1480, 1570, 2284, 2780, 2855, 3140, 4568, 5143, 5560, 5710, 5809, 6280, 10286, 11420, 11618, 20572, 21127, 21823, 22840, 23236, 25715, 29045, 41144, 42254, 43646, 46472, 51430, 58090, 79369, 84508, 87292, 89647, 102860, 105635, 109115, 116180, 158738, 169016, 174584, 179294, 205720, 211270, 218230, 232360, 317476, 358588, 396845, 422540, 436460, 448235, 634952, 717176, 793690, 807451, 845080, 872920, 896470, 1587380, 1614902, 1792940, 2936653, 3174760, 3229804, 3316939, 3585880, 4037255, 5873306, 6459608, 6633878, 8074510, 11746612, 12460933, 13267756, 14683265, 16149020, 16584695, 23493224, 24921866, 26535512, 29366530, 32298040, 33169390, 49843732, 58733060, 62304665, 66338780, 99687464, 117466120, 124609330, 132677560, 249218660, 461054521, 498437320, 922109042, 1844218084, 2305272605, 3688436168, 4610545210, 9221090420, 18442180840]

約数ペア:

[(1, 18442180840), (2, 9221090420), (4, 4610545210), (5, 3688436168), (8, 2305272605), (10, 1844218084), (20, 922109042), (37, 498437320), (40, 461054521), (74, 249218660), (139, 132677560), (148, 124609330), (157, 117466120), (185, 99687464), (278, 66338780), (296, 62304665), (314, 58733060), (370, 49843732), (556, 33169390), (571, 32298040), (628, 29366530), (695, 26535512), (740, 24921866), (785, 23493224), (1112, 16584695), (1142, 16149020), (1256, 14683265), (1390, 13267756), (1480, 12460933), (1570, 11746612), (2284, 8074510), (2780, 6633878), (2855, 6459608), (3140, 5873306), (4568, 4037255), (5143, 3585880), (5560, 3316939), (5710, 3229804), (5809, 3174760), (6280, 2936653), (10286, 1792940), (11420, 1614902), (11618, 1587380), (20572, 896470), (21127, 872920), (21823, 845080), (22840, 807451), (23236, 793690), (25715, 717176), (29045, 634952), (41144, 448235), (42254, 436460), (43646, 422540), (46472, 396845), (51430, 358588), (58090, 317476), (79369, 232360), (84508, 218230), (87292, 211270), (89647, 205720), (102860, 179294), (105635, 174584), (109115, 169016), (116180, 158738)]