28404780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1217}}^1$

素因数の和:1618

約数の個数: 48

約数和(自身を含む): 79803360

約数和(自身を除く): 51398580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 389, 778, 1167, 1217, 1556, 1945, 2334, 2434, 3651, 3890, 4668, 4868, 5835, 6085, 7302, 7780, 11670, 12170, 14604, 18255, 23340, 24340, 36510, 73020, 473413, 946826, 1420239, 1893652, 2367065, 2840478, 4734130, 5680956, 7101195, 9468260, 14202390, 28404780]

約数ペア:

[(1, 28404780), (2, 14202390), (3, 9468260), (4, 7101195), (5, 5680956), (6, 4734130), (10, 2840478), (12, 2367065), (15, 1893652), (20, 1420239), (30, 946826), (60, 473413), (389, 73020), (778, 36510), (1167, 24340), (1217, 23340), (1556, 18255), (1945, 14604), (2334, 12170), (2434, 11670), (3651, 7780), (3890, 7302), (4668, 6085), (4868, 5835)]