19516720

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4603}}^1$

素因数の和:4669

約数の個数: 40

約数和(自身を含む): 46242576

約数和(自身を除く): 26725856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 4603, 9206, 18412, 23015, 36824, 46030, 73648, 92060, 184120, 243959, 368240, 487918, 975836, 1219795, 1951672, 2439590, 3903344, 4879180, 9758360, 19516720]

約数ペア:

[(1, 19516720), (2, 9758360), (4, 4879180), (5, 3903344), (8, 2439590), (10, 1951672), (16, 1219795), (20, 975836), (40, 487918), (53, 368240), (80, 243959), (106, 184120), (212, 92060), (265, 73648), (424, 46030), (530, 36824), (848, 23015), (1060, 18412), (2120, 9206), (4240, 4603)]