20790560

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{977}}^1$

素因数の和:1018

約数の個数: 96

約数和(自身を含む): 59149440

約数和(自身を除く): 38358880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 160, 190, 224, 266, 280, 304, 380, 532, 560, 608, 665, 760, 977, 1064, 1120, 1330, 1520, 1954, 2128, 2660, 3040, 3908, 4256, 4885, 5320, 6839, 7816, 9770, 10640, 13678, 15632, 18563, 19540, 21280, 27356, 31264, 34195, 37126, 39080, 54712, 68390, 74252, 78160, 92815, 109424, 129941, 136780, 148504, 156320, 185630, 218848, 259882, 273560, 297008, 371260, 519764, 547120, 594016, 649705, 742520, 1039528, 1094240, 1299410, 1485040, 2079056, 2598820, 2970080, 4158112, 5197640, 10395280, 20790560]

約数ペア:

[(1, 20790560), (2, 10395280), (4, 5197640), (5, 4158112), (7, 2970080), (8, 2598820), (10, 2079056), (14, 1485040), (16, 1299410), (19, 1094240), (20, 1039528), (28, 742520), (32, 649705), (35, 594016), (38, 547120), (40, 519764), (56, 371260), (70, 297008), (76, 273560), (80, 259882), (95, 218848), (112, 185630), (133, 156320), (140, 148504), (152, 136780), (160, 129941), (190, 109424), (224, 92815), (266, 78160), (280, 74252), (304, 68390), (380, 54712), (532, 39080), (560, 37126), (608, 34195), (665, 31264), (760, 27356), (977, 21280), (1064, 19540), (1120, 18563), (1330, 15632), (1520, 13678), (1954, 10640), (2128, 9770), (2660, 7816), (3040, 6839), (3908, 5320), (4256, 4885)]