20896960

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:534

約数の個数: 112

約数和(自身を含む): 59984640

約数和(自身を除く): 39087680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 64, 70, 76, 80, 95, 112, 133, 140, 152, 160, 190, 224, 266, 280, 304, 320, 380, 448, 491, 532, 560, 608, 665, 760, 982, 1064, 1120, 1216, 1330, 1520, 1964, 2128, 2240, 2455, 2660, 3040, 3437, 3928, 4256, 4910, 5320, 6080, 6874, 7856, 8512, 9329, 9820, 10640, 13748, 15712, 17185, 18658, 19640, 21280, 27496, 31424, 34370, 37316, 39280, 42560, 46645, 54992, 65303, 68740, 74632, 78560, 93290, 109984, 130606, 137480, 149264, 157120, 186580, 219968, 261212, 274960, 298528, 326515, 373160, 522424, 549920, 597056, 653030, 746320, 1044848, 1099840, 1306060, 1492640, 2089696, 2612120, 2985280, 4179392, 5224240, 10448480, 20896960]

約数ペア:

[(1, 20896960), (2, 10448480), (4, 5224240), (5, 4179392), (7, 2985280), (8, 2612120), (10, 2089696), (14, 1492640), (16, 1306060), (19, 1099840), (20, 1044848), (28, 746320), (32, 653030), (35, 597056), (38, 549920), (40, 522424), (56, 373160), (64, 326515), (70, 298528), (76, 274960), (80, 261212), (95, 219968), (112, 186580), (133, 157120), (140, 149264), (152, 137480), (160, 130606), (190, 109984), (224, 93290), (266, 78560), (280, 74632), (304, 68740), (320, 65303), (380, 54992), (448, 46645), (491, 42560), (532, 39280), (560, 37316), (608, 34370), (665, 31424), (760, 27496), (982, 21280), (1064, 19640), (1120, 18658), (1216, 17185), (1330, 15712), (1520, 13748), (1964, 10640), (2128, 9820), (2240, 9329), (2455, 8512), (2660, 7856), (3040, 6874), (3437, 6080), (3928, 5320), (4256, 4910)]