28130340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{66977}}^1$

素因数の和:66996

約数の個数: 48

約数和(自身を含む): 90018432

約数和(自身を除く): 61888092

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 66977, 133954, 200931, 267908, 334885, 401862, 468839, 669770, 803724, 937678, 1004655, 1339540, 1406517, 1875356, 2009310, 2344195, 2813034, 4018620, 4688390, 5626068, 7032585, 9376780, 14065170, 28130340]

約数ペア:

[(1, 28130340), (2, 14065170), (3, 9376780), (4, 7032585), (5, 5626068), (6, 4688390), (7, 4018620), (10, 2813034), (12, 2344195), (14, 2009310), (15, 1875356), (20, 1406517), (21, 1339540), (28, 1004655), (30, 937678), (35, 803724), (42, 669770), (60, 468839), (70, 401862), (84, 334885), (105, 267908), (140, 200931), (210, 133954), (420, 66977)]