19018565552

素因数分解:

$2^4\times 7^1\times {\mathrm{83}}^1\times {\mathrm{487}}^1\times {\mathrm{4201}}^1$

素因数の和:4786

約数の個数: 80

約数和(自身を含む): 42717599232

約数和(自身を除く): 23699033680

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 83, 112, 166, 332, 487, 581, 664, 974, 1162, 1328, 1948, 2324, 3409, 3896, 4201, 4648, 6818, 7792, 8402, 9296, 13636, 16804, 27272, 29407, 33608, 40421, 54544, 58814, 67216, 80842, 117628, 161684, 235256, 282947, 323368, 348683, 470512, 565894, 646736, 697366, 1131788, 1394732, 2045887, 2263576, 2440781, 2789464, 4091774, 4527152, 4881562, 5578928, 8183548, 9763124, 14321209, 16367096, 19526248, 28642418, 32734192, 39052496, 57284836, 114569672, 169808621, 229139344, 339617242, 679234484, 1188660347, 1358468968, 2377320694, 2716937936, 4754641388, 9509282776, 19018565552]

約数ペア:

[(1, 19018565552), (2, 9509282776), (4, 4754641388), (7, 2716937936), (8, 2377320694), (14, 1358468968), (16, 1188660347), (28, 679234484), (56, 339617242), (83, 229139344), (112, 169808621), (166, 114569672), (332, 57284836), (487, 39052496), (581, 32734192), (664, 28642418), (974, 19526248), (1162, 16367096), (1328, 14321209), (1948, 9763124), (2324, 8183548), (3409, 5578928), (3896, 4881562), (4201, 4527152), (4648, 4091774), (6818, 2789464), (7792, 2440781), (8402, 2263576), (9296, 2045887), (13636, 1394732), (16804, 1131788), (27272, 697366), (29407, 646736), (33608, 565894), (40421, 470512), (54544, 348683), (58814, 323368), (67216, 282947), (80842, 235256), (117628, 161684)]