20124650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4423}}^1$

素因数の和:4455

約数の個数: 48

約数和(自身を含む): 46080384

約数和(自身を除く): 25955734

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 175, 182, 325, 350, 455, 650, 910, 2275, 4423, 4550, 8846, 22115, 30961, 44230, 57499, 61922, 110575, 114998, 154805, 221150, 287495, 309610, 402493, 574990, 774025, 804986, 1437475, 1548050, 2012465, 2874950, 4024930, 10062325, 20124650]

約数ペア:

[(1, 20124650), (2, 10062325), (5, 4024930), (7, 2874950), (10, 2012465), (13, 1548050), (14, 1437475), (25, 804986), (26, 774025), (35, 574990), (50, 402493), (65, 309610), (70, 287495), (91, 221150), (130, 154805), (175, 114998), (182, 110575), (325, 61922), (350, 57499), (455, 44230), (650, 30961), (910, 22115), (2275, 8846), (4423, 4550)]