1901981320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{2053}}^1$

素因数の和:2159

約数の個数: 128

約数和(自身を含む): 4791571200

約数和(自身を除く): 2889589880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 53, 76, 92, 95, 106, 115, 152, 184, 190, 212, 230, 265, 380, 424, 437, 460, 530, 760, 874, 920, 1007, 1060, 1219, 1748, 2014, 2053, 2120, 2185, 2438, 3496, 4028, 4106, 4370, 4876, 5035, 6095, 8056, 8212, 8740, 9752, 10070, 10265, 12190, 16424, 17480, 20140, 20530, 23161, 24380, 39007, 40280, 41060, 46322, 47219, 48760, 78014, 82120, 92644, 94438, 108809, 115805, 156028, 185288, 188876, 195035, 217618, 231610, 236095, 312056, 377752, 390070, 435236, 463220, 472190, 544045, 780140, 870472, 897161, 926440, 944380, 1088090, 1560280, 1794322, 1888760, 2067371, 2176180, 2502607, 3588644, 4134742, 4352360, 4485805, 5005214, 7177288, 8269484, 8971610, 10010428, 10336855, 12513035, 16538968, 17943220, 20020856, 20673710, 25026070, 35886440, 41347420, 47549533, 50052140, 82694840, 95099066, 100104280, 190198132, 237747665, 380396264, 475495330, 950990660, 1901981320]

約数ペア:

[(1, 1901981320), (2, 950990660), (4, 475495330), (5, 380396264), (8, 237747665), (10, 190198132), (19, 100104280), (20, 95099066), (23, 82694840), (38, 50052140), (40, 47549533), (46, 41347420), (53, 35886440), (76, 25026070), (92, 20673710), (95, 20020856), (106, 17943220), (115, 16538968), (152, 12513035), (184, 10336855), (190, 10010428), (212, 8971610), (230, 8269484), (265, 7177288), (380, 5005214), (424, 4485805), (437, 4352360), (460, 4134742), (530, 3588644), (760, 2502607), (874, 2176180), (920, 2067371), (1007, 1888760), (1060, 1794322), (1219, 1560280), (1748, 1088090), (2014, 944380), (2053, 926440), (2120, 897161), (2185, 870472), (2438, 780140), (3496, 544045), (4028, 472190), (4106, 463220), (4370, 435236), (4876, 390070), (5035, 377752), (6095, 312056), (8056, 236095), (8212, 231610), (8740, 217618), (9752, 195035), (10070, 188876), (10265, 185288), (12190, 156028), (16424, 115805), (17480, 108809), (20140, 94438), (20530, 92644), (23161, 82120), (24380, 78014), (39007, 48760), (40280, 47219), (41060, 46322)]