20485916

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 42190848

約数和(自身を除く): 21704932

約数列:

[1, 2, 4, 11, 22, 23, 31, 44, 46, 62, 92, 124, 253, 341, 506, 653, 682, 713, 1012, 1306, 1364, 1426, 2612, 2852, 7183, 7843, 14366, 15019, 15686, 20243, 28732, 30038, 31372, 40486, 60076, 80972, 165209, 222673, 330418, 445346, 465589, 660836, 890692, 931178, 1862356, 5121479, 10242958, 20485916]

約数ペア:

[(1, 20485916), (2, 10242958), (4, 5121479), (11, 1862356), (22, 931178), (23, 890692), (31, 660836), (44, 465589), (46, 445346), (62, 330418), (92, 222673), (124, 165209), (253, 80972), (341, 60076), (506, 40486), (653, 31372), (682, 30038), (713, 28732), (1012, 20243), (1306, 15686), (1364, 15019), (1426, 14366), (2612, 7843), (2852, 7183)]