28143940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6733}}^1$

素因数の和:6772

約数の個数: 48

約数和(自身を含む): 67878720

約数和(自身を除く): 39734780

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 6733, 13466, 26932, 33665, 67330, 74063, 127927, 134660, 148126, 255854, 296252, 370315, 511708, 639635, 740630, 1279270, 1407197, 1481260, 2558540, 2814394, 5628788, 7035985, 14071970, 28143940]

約数ペア:

[(1, 28143940), (2, 14071970), (4, 7035985), (5, 5628788), (10, 2814394), (11, 2558540), (19, 1481260), (20, 1407197), (22, 1279270), (38, 740630), (44, 639635), (55, 511708), (76, 370315), (95, 296252), (110, 255854), (190, 148126), (209, 134660), (220, 127927), (380, 74063), (418, 67330), (836, 33665), (1045, 26932), (2090, 13466), (4180, 6733)]