1815888984

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{26821}}^1$

素因数の和:26881

約数の個数: 128

約数和(自身を含む): 5767802880

約数和(自身を除く): 3951913896

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 31, 39, 42, 52, 56, 62, 78, 84, 91, 93, 104, 124, 156, 168, 182, 186, 217, 248, 273, 312, 364, 372, 403, 434, 546, 651, 728, 744, 806, 868, 1092, 1209, 1302, 1612, 1736, 2184, 2418, 2604, 2821, 3224, 4836, 5208, 5642, 8463, 9672, 11284, 16926, 22568, 26821, 33852, 53642, 67704, 80463, 107284, 160926, 187747, 214568, 321852, 348673, 375494, 563241, 643704, 697346, 750988, 831451, 1046019, 1126482, 1394692, 1501976, 1662902, 2092038, 2252964, 2440711, 2494353, 2789384, 3325804, 4184076, 4505928, 4881422, 4988706, 5820157, 6651608, 7322133, 8368152, 9762844, 9977412, 10808863, 11640314, 14644266, 17460471, 19525688, 19954824, 21617726, 23280628, 29288532, 32426589, 34920942, 43235452, 46561256, 58577064, 64853178, 69841884, 75662041, 86470904, 129706356, 139683768, 151324082, 226986123, 259412712, 302648164, 453972246, 605296328, 907944492, 1815888984]

約数ペア:

[(1, 1815888984), (2, 907944492), (3, 605296328), (4, 453972246), (6, 302648164), (7, 259412712), (8, 226986123), (12, 151324082), (13, 139683768), (14, 129706356), (21, 86470904), (24, 75662041), (26, 69841884), (28, 64853178), (31, 58577064), (39, 46561256), (42, 43235452), (52, 34920942), (56, 32426589), (62, 29288532), (78, 23280628), (84, 21617726), (91, 19954824), (93, 19525688), (104, 17460471), (124, 14644266), (156, 11640314), (168, 10808863), (182, 9977412), (186, 9762844), (217, 8368152), (248, 7322133), (273, 6651608), (312, 5820157), (364, 4988706), (372, 4881422), (403, 4505928), (434, 4184076), (546, 3325804), (651, 2789384), (728, 2494353), (744, 2440711), (806, 2252964), (868, 2092038), (1092, 1662902), (1209, 1501976), (1302, 1394692), (1612, 1126482), (1736, 1046019), (2184, 831451), (2418, 750988), (2604, 697346), (2821, 643704), (3224, 563241), (4836, 375494), (5208, 348673), (5642, 321852), (8463, 214568), (9672, 187747), (11284, 160926), (16926, 107284), (22568, 80463), (26821, 67704), (33852, 53642)]