1327921280

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{947}}^1$

素因数の和:1286

約数の個数: 128

約数和(自身を含む): 3643505280

約数和(自身を除く): 2315584000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 313, 320, 448, 560, 626, 640, 896, 947, 1120, 1252, 1565, 1894, 2191, 2240, 2504, 3130, 3788, 4382, 4480, 4735, 5008, 6260, 6629, 7576, 8764, 9470, 10016, 10955, 12520, 13258, 15152, 17528, 18940, 20032, 21910, 25040, 26516, 30304, 33145, 35056, 37880, 40064, 43820, 50080, 53032, 60608, 66290, 70112, 75760, 87640, 100160, 106064, 121216, 132580, 140224, 151520, 175280, 200320, 212128, 265160, 280448, 296411, 303040, 350560, 424256, 530320, 592822, 606080, 701120, 848512, 1060640, 1185644, 1402240, 1482055, 2074877, 2121280, 2371288, 2964110, 4149754, 4242560, 4742576, 5928220, 8299508, 9485152, 10374385, 11856440, 16599016, 18970304, 20748770, 23712880, 33198032, 37940608, 41497540, 47425760, 66396064, 82995080, 94851520, 132792128, 165990160, 189703040, 265584256, 331980320, 663960640, 1327921280]

約数ペア:

[(1, 1327921280), (2, 663960640), (4, 331980320), (5, 265584256), (7, 189703040), (8, 165990160), (10, 132792128), (14, 94851520), (16, 82995080), (20, 66396064), (28, 47425760), (32, 41497540), (35, 37940608), (40, 33198032), (56, 23712880), (64, 20748770), (70, 18970304), (80, 16599016), (112, 11856440), (128, 10374385), (140, 9485152), (160, 8299508), (224, 5928220), (280, 4742576), (313, 4242560), (320, 4149754), (448, 2964110), (560, 2371288), (626, 2121280), (640, 2074877), (896, 1482055), (947, 1402240), (1120, 1185644), (1252, 1060640), (1565, 848512), (1894, 701120), (2191, 606080), (2240, 592822), (2504, 530320), (3130, 424256), (3788, 350560), (4382, 303040), (4480, 296411), (4735, 280448), (5008, 265160), (6260, 212128), (6629, 200320), (7576, 175280), (8764, 151520), (9470, 140224), (10016, 132580), (10955, 121216), (12520, 106064), (13258, 100160), (15152, 87640), (17528, 75760), (18940, 70112), (20032, 66290), (21910, 60608), (25040, 53032), (26516, 50080), (30304, 43820), (33145, 40064), (35056, 37880)]