213606680

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{15569}}^1$

素因数の和:15601

約数の個数: 64

約数和(自身を含む): 560520000

約数和(自身を除く): 346913320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2744, 3430, 6860, 13720, 15569, 31138, 62276, 77845, 108983, 124552, 155690, 217966, 311380, 435932, 544915, 622760, 762881, 871864, 1089830, 1525762, 2179660, 3051524, 3814405, 4359320, 5340167, 6103048, 7628810, 10680334, 15257620, 21360668, 26700835, 30515240, 42721336, 53401670, 106803340, 213606680]

約数ペア:

[(1, 213606680), (2, 106803340), (4, 53401670), (5, 42721336), (7, 30515240), (8, 26700835), (10, 21360668), (14, 15257620), (20, 10680334), (28, 7628810), (35, 6103048), (40, 5340167), (49, 4359320), (56, 3814405), (70, 3051524), (98, 2179660), (140, 1525762), (196, 1089830), (245, 871864), (280, 762881), (343, 622760), (392, 544915), (490, 435932), (686, 311380), (980, 217966), (1372, 155690), (1715, 124552), (1960, 108983), (2744, 77845), (3430, 62276), (6860, 31138), (13720, 15569)]