80984540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{44497}}^1$

素因数の和:44526

約数の個数: 48

約数和(自身を含む): 209318592

約数和(自身を除く): 128334052

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 44497, 88994, 177988, 222485, 311479, 444970, 578461, 622958, 889940, 1156922, 1245916, 1557395, 2313844, 2892305, 3114790, 4049227, 5784610, 6229580, 8098454, 11569220, 16196908, 20246135, 40492270, 80984540]

約数ペア:

[(1, 80984540), (2, 40492270), (4, 20246135), (5, 16196908), (7, 11569220), (10, 8098454), (13, 6229580), (14, 5784610), (20, 4049227), (26, 3114790), (28, 2892305), (35, 2313844), (52, 1557395), (65, 1245916), (70, 1156922), (91, 889940), (130, 622958), (140, 578461), (182, 444970), (260, 311479), (364, 222485), (455, 177988), (910, 88994), (1820, 44497)]