19860320

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:220

約数の個数: 96

約数和(自身を含む): 50803200

約数和(自身を除く): 30942880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 47, 76, 80, 94, 95, 139, 152, 160, 188, 190, 235, 278, 304, 376, 380, 470, 556, 608, 695, 752, 760, 893, 940, 1112, 1390, 1504, 1520, 1786, 1880, 2224, 2641, 2780, 3040, 3572, 3760, 4448, 4465, 5282, 5560, 6533, 7144, 7520, 8930, 10564, 11120, 13066, 13205, 14288, 17860, 21128, 22240, 26132, 26410, 28576, 32665, 35720, 42256, 52264, 52820, 65330, 71440, 84512, 104528, 105640, 124127, 130660, 142880, 209056, 211280, 248254, 261320, 422560, 496508, 522640, 620635, 993016, 1045280, 1241270, 1986032, 2482540, 3972064, 4965080, 9930160, 19860320]

約数ペア:

[(1, 19860320), (2, 9930160), (4, 4965080), (5, 3972064), (8, 2482540), (10, 1986032), (16, 1241270), (19, 1045280), (20, 993016), (32, 620635), (38, 522640), (40, 496508), (47, 422560), (76, 261320), (80, 248254), (94, 211280), (95, 209056), (139, 142880), (152, 130660), (160, 124127), (188, 105640), (190, 104528), (235, 84512), (278, 71440), (304, 65330), (376, 52820), (380, 52264), (470, 42256), (556, 35720), (608, 32665), (695, 28576), (752, 26410), (760, 26132), (893, 22240), (940, 21128), (1112, 17860), (1390, 14288), (1504, 13205), (1520, 13066), (1786, 11120), (1880, 10564), (2224, 8930), (2641, 7520), (2780, 7144), (3040, 6533), (3572, 5560), (3760, 5282), (4448, 4465)]