1621146880

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{349}}^1$

素因数の和:580

約数の個数: 144

約数和(自身を含む): 4120704000

約数和(自身を除く): 2499557120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 191, 256, 304, 320, 349, 380, 382, 608, 640, 698, 760, 764, 955, 1216, 1280, 1396, 1520, 1528, 1745, 1910, 2432, 2792, 3040, 3056, 3490, 3629, 3820, 4864, 5584, 6080, 6112, 6631, 6980, 7258, 7640, 11168, 12160, 12224, 13262, 13960, 14516, 15280, 18145, 22336, 24320, 24448, 26524, 27920, 29032, 30560, 33155, 36290, 44672, 48896, 53048, 55840, 58064, 61120, 66310, 66659, 72580, 89344, 106096, 111680, 116128, 122240, 132620, 133318, 145160, 212192, 223360, 232256, 244480, 265240, 266636, 290320, 333295, 424384, 446720, 464512, 530480, 533272, 580640, 666590, 848768, 929024, 1060960, 1066544, 1161280, 1266521, 1333180, 1697536, 2121920, 2133088, 2322560, 2533042, 2666360, 4243840, 4266176, 4645120, 5066084, 5332720, 6332605, 8487680, 8532352, 10132168, 10665440, 12665210, 17064704, 20264336, 21330880, 25330420, 40528672, 42661760, 50660840, 81057344, 85323520, 101321680, 162114688, 202643360, 324229376, 405286720, 810573440, 1621146880]

約数ペア:

[(1, 1621146880), (2, 810573440), (4, 405286720), (5, 324229376), (8, 202643360), (10, 162114688), (16, 101321680), (19, 85323520), (20, 81057344), (32, 50660840), (38, 42661760), (40, 40528672), (64, 25330420), (76, 21330880), (80, 20264336), (95, 17064704), (128, 12665210), (152, 10665440), (160, 10132168), (190, 8532352), (191, 8487680), (256, 6332605), (304, 5332720), (320, 5066084), (349, 4645120), (380, 4266176), (382, 4243840), (608, 2666360), (640, 2533042), (698, 2322560), (760, 2133088), (764, 2121920), (955, 1697536), (1216, 1333180), (1280, 1266521), (1396, 1161280), (1520, 1066544), (1528, 1060960), (1745, 929024), (1910, 848768), (2432, 666590), (2792, 580640), (3040, 533272), (3056, 530480), (3490, 464512), (3629, 446720), (3820, 424384), (4864, 333295), (5584, 290320), (6080, 266636), (6112, 265240), (6631, 244480), (6980, 232256), (7258, 223360), (7640, 212192), (11168, 145160), (12160, 133318), (12224, 132620), (13262, 122240), (13960, 116128), (14516, 111680), (15280, 106096), (18145, 89344), (22336, 72580), (24320, 66659), (24448, 66310), (26524, 61120), (27920, 58064), (29032, 55840), (30560, 53048), (33155, 48896), (36290, 44672)]