1328860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 3175200

約数和(自身を除く): 1846340

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 269, 380, 494, 538, 988, 1076, 1235, 1345, 2470, 2690, 3497, 4940, 5111, 5380, 6994, 10222, 13988, 17485, 20444, 25555, 34970, 51110, 66443, 69940, 102220, 132886, 265772, 332215, 664430, 1328860]

約数ペア:

[(1, 1328860), (2, 664430), (4, 332215), (5, 265772), (10, 132886), (13, 102220), (19, 69940), (20, 66443), (26, 51110), (38, 34970), (52, 25555), (65, 20444), (76, 17485), (95, 13988), (130, 10222), (190, 6994), (247, 5380), (260, 5111), (269, 4940), (380, 3497), (494, 2690), (538, 2470), (988, 1345), (1076, 1235)]