20860480

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:156

約数の個数: 112

約数和(自身を含む): 54132480

約数和(自身を除く): 33272000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 47, 64, 73, 76, 80, 94, 95, 146, 152, 160, 188, 190, 235, 292, 304, 320, 365, 376, 380, 470, 584, 608, 730, 752, 760, 893, 940, 1168, 1216, 1387, 1460, 1504, 1520, 1786, 1880, 2336, 2774, 2920, 3008, 3040, 3431, 3572, 3760, 4465, 4672, 5548, 5840, 6080, 6862, 6935, 7144, 7520, 8930, 11096, 11680, 13724, 13870, 14288, 15040, 17155, 17860, 22192, 23360, 27448, 27740, 28576, 34310, 35720, 44384, 54896, 55480, 57152, 65189, 68620, 71440, 88768, 109792, 110960, 130378, 137240, 142880, 219584, 221920, 260756, 274480, 285760, 325945, 443840, 521512, 548960, 651890, 1043024, 1097920, 1303780, 2086048, 2607560, 4172096, 5215120, 10430240, 20860480]

約数ペア:

[(1, 20860480), (2, 10430240), (4, 5215120), (5, 4172096), (8, 2607560), (10, 2086048), (16, 1303780), (19, 1097920), (20, 1043024), (32, 651890), (38, 548960), (40, 521512), (47, 443840), (64, 325945), (73, 285760), (76, 274480), (80, 260756), (94, 221920), (95, 219584), (146, 142880), (152, 137240), (160, 130378), (188, 110960), (190, 109792), (235, 88768), (292, 71440), (304, 68620), (320, 65189), (365, 57152), (376, 55480), (380, 54896), (470, 44384), (584, 35720), (608, 34310), (730, 28576), (752, 27740), (760, 27448), (893, 23360), (940, 22192), (1168, 17860), (1216, 17155), (1387, 15040), (1460, 14288), (1504, 13870), (1520, 13724), (1786, 11680), (1880, 11096), (2336, 8930), (2774, 7520), (2920, 7144), (3008, 6935), (3040, 6862), (3431, 6080), (3572, 5840), (3760, 5548), (4465, 4672)]