1397361280

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2381}}^1$

素因数の和:2538

約数の個数: 128

約数和(自身を含む): 3848549760

約数和(自身を除く): 2451188480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 131, 140, 160, 224, 262, 280, 320, 448, 524, 560, 640, 655, 896, 917, 1048, 1120, 1310, 1834, 2096, 2240, 2381, 2620, 3668, 4192, 4480, 4585, 4762, 5240, 7336, 8384, 9170, 9524, 10480, 11905, 14672, 16667, 16768, 18340, 19048, 20960, 23810, 29344, 33334, 36680, 38096, 41920, 47620, 58688, 66668, 73360, 76192, 83335, 83840, 95240, 117376, 133336, 146720, 152384, 166670, 190480, 266672, 293440, 304768, 311911, 333340, 380960, 533344, 586880, 623822, 666680, 761920, 1066688, 1247644, 1333360, 1523840, 1559555, 2133376, 2183377, 2495288, 2666720, 3119110, 4366754, 4990576, 5333440, 6238220, 8733508, 9981152, 10666880, 10916885, 12476440, 17467016, 19962304, 21833770, 24952880, 34934032, 39924608, 43667540, 49905760, 69868064, 87335080, 99811520, 139736128, 174670160, 199623040, 279472256, 349340320, 698680640, 1397361280]

約数ペア:

[(1, 1397361280), (2, 698680640), (4, 349340320), (5, 279472256), (7, 199623040), (8, 174670160), (10, 139736128), (14, 99811520), (16, 87335080), (20, 69868064), (28, 49905760), (32, 43667540), (35, 39924608), (40, 34934032), (56, 24952880), (64, 21833770), (70, 19962304), (80, 17467016), (112, 12476440), (128, 10916885), (131, 10666880), (140, 9981152), (160, 8733508), (224, 6238220), (262, 5333440), (280, 4990576), (320, 4366754), (448, 3119110), (524, 2666720), (560, 2495288), (640, 2183377), (655, 2133376), (896, 1559555), (917, 1523840), (1048, 1333360), (1120, 1247644), (1310, 1066688), (1834, 761920), (2096, 666680), (2240, 623822), (2381, 586880), (2620, 533344), (3668, 380960), (4192, 333340), (4480, 311911), (4585, 304768), (4762, 293440), (5240, 266672), (7336, 190480), (8384, 166670), (9170, 152384), (9524, 146720), (10480, 133336), (11905, 117376), (14672, 95240), (16667, 83840), (16768, 83335), (18340, 76192), (19048, 73360), (20960, 66668), (23810, 58688), (29344, 47620), (33334, 41920), (36680, 38096)]