20764412

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 40279680

約数和(自身を除く): 19515268

約数列:

[1, 2, 4, 17, 34, 47, 68, 73, 89, 94, 146, 178, 188, 292, 356, 799, 1241, 1513, 1598, 2482, 3026, 3196, 3431, 4183, 4964, 6052, 6497, 6862, 8366, 12994, 13724, 16732, 25988, 58327, 71111, 110449, 116654, 142222, 220898, 233308, 284444, 305359, 441796, 610718, 1221436, 5191103, 10382206, 20764412]

約数ペア:

[(1, 20764412), (2, 10382206), (4, 5191103), (17, 1221436), (34, 610718), (47, 441796), (68, 305359), (73, 284444), (89, 233308), (94, 220898), (146, 142222), (178, 116654), (188, 110449), (292, 71111), (356, 58327), (799, 25988), (1241, 16732), (1513, 13724), (1598, 12994), (2482, 8366), (3026, 6862), (3196, 6497), (3431, 6052), (4183, 4964)]