19864240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{22573}}^1$

素因数の和:22597

約数の個数: 40

約数和(自身を含む): 50385168

約数和(自身を除く): 30520928

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 22573, 45146, 90292, 112865, 180584, 225730, 248303, 361168, 451460, 496606, 902920, 993212, 1241515, 1805840, 1986424, 2483030, 3972848, 4966060, 9932120, 19864240]

約数ペア:

[(1, 19864240), (2, 9932120), (4, 4966060), (5, 3972848), (8, 2483030), (10, 1986424), (11, 1805840), (16, 1241515), (20, 993212), (22, 902920), (40, 496606), (44, 451460), (55, 361168), (80, 248303), (88, 225730), (110, 180584), (176, 112865), (220, 90292), (440, 45146), (880, 22573)]