100128860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20269}}^1$

素因数の和:20310

約数の個数: 48

約数和(自身を含む): 238375200

約数和(自身を除く): 138246340

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 20269, 40538, 81076, 101345, 202690, 263497, 385111, 405380, 526994, 770222, 1053988, 1317485, 1540444, 1925555, 2634970, 3851110, 5006443, 5269940, 7702220, 10012886, 20025772, 25032215, 50064430, 100128860]

約数ペア:

[(1, 100128860), (2, 50064430), (4, 25032215), (5, 20025772), (10, 10012886), (13, 7702220), (19, 5269940), (20, 5006443), (26, 3851110), (38, 2634970), (52, 1925555), (65, 1540444), (76, 1317485), (95, 1053988), (130, 770222), (190, 526994), (247, 405380), (260, 385111), (380, 263497), (494, 202690), (988, 101345), (1235, 81076), (2470, 40538), (4940, 20269)]