28491680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{25439}}^1$

素因数の和:25461

約数の個数: 48

約数和(自身を含む): 76930560

約数和(自身を除く): 48438880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 25439, 50878, 101756, 127195, 178073, 203512, 254390, 356146, 407024, 508780, 712292, 814048, 890365, 1017560, 1424584, 1780730, 2035120, 2849168, 3561460, 4070240, 5698336, 7122920, 14245840, 28491680]

約数ペア:

[(1, 28491680), (2, 14245840), (4, 7122920), (5, 5698336), (7, 4070240), (8, 3561460), (10, 2849168), (14, 2035120), (16, 1780730), (20, 1424584), (28, 1017560), (32, 890365), (35, 814048), (40, 712292), (56, 508780), (70, 407024), (80, 356146), (112, 254390), (140, 203512), (160, 178073), (224, 127195), (280, 101756), (560, 50878), (1120, 25439)]