20996460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1741}}^1$

素因数の和:1823

約数の個数: 72

約数和(自身を含む): 64676976

約数和(自身を除く): 43680516

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 67, 90, 134, 180, 201, 268, 335, 402, 603, 670, 804, 1005, 1206, 1340, 1741, 2010, 2412, 3015, 3482, 4020, 5223, 6030, 6964, 8705, 10446, 12060, 15669, 17410, 20892, 26115, 31338, 34820, 52230, 62676, 78345, 104460, 116647, 156690, 233294, 313380, 349941, 466588, 583235, 699882, 1049823, 1166470, 1399764, 1749705, 2099646, 2332940, 3499410, 4199292, 5249115, 6998820, 10498230, 20996460]

約数ペア:

[(1, 20996460), (2, 10498230), (3, 6998820), (4, 5249115), (5, 4199292), (6, 3499410), (9, 2332940), (10, 2099646), (12, 1749705), (15, 1399764), (18, 1166470), (20, 1049823), (30, 699882), (36, 583235), (45, 466588), (60, 349941), (67, 313380), (90, 233294), (134, 156690), (180, 116647), (201, 104460), (268, 78345), (335, 62676), (402, 52230), (603, 34820), (670, 31338), (804, 26115), (1005, 20892), (1206, 17410), (1340, 15669), (1741, 12060), (2010, 10446), (2412, 8705), (3015, 6964), (3482, 6030), (4020, 5223)]