81305180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:459

約数の個数: 96

約数和(自身を含む): 200309760

約数和(自身を除く): 119004580

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 53, 55, 76, 95, 106, 110, 190, 209, 212, 220, 265, 367, 380, 418, 530, 583, 734, 836, 1007, 1045, 1060, 1166, 1468, 1835, 2014, 2090, 2332, 2915, 3670, 4028, 4037, 4180, 5035, 5830, 6973, 7340, 8074, 10070, 11077, 11660, 13946, 16148, 19451, 20140, 20185, 22154, 27892, 34865, 38902, 40370, 44308, 55385, 69730, 76703, 77804, 80740, 97255, 110770, 139460, 153406, 194510, 213961, 221540, 306812, 369569, 383515, 389020, 427922, 739138, 767030, 855844, 1069805, 1478276, 1534060, 1847845, 2139610, 3695690, 4065259, 4279220, 7391380, 8130518, 16261036, 20326295, 40652590, 81305180]

約数ペア:

[(1, 81305180), (2, 40652590), (4, 20326295), (5, 16261036), (10, 8130518), (11, 7391380), (19, 4279220), (20, 4065259), (22, 3695690), (38, 2139610), (44, 1847845), (53, 1534060), (55, 1478276), (76, 1069805), (95, 855844), (106, 767030), (110, 739138), (190, 427922), (209, 389020), (212, 383515), (220, 369569), (265, 306812), (367, 221540), (380, 213961), (418, 194510), (530, 153406), (583, 139460), (734, 110770), (836, 97255), (1007, 80740), (1045, 77804), (1060, 76703), (1166, 69730), (1468, 55385), (1835, 44308), (2014, 40370), (2090, 38902), (2332, 34865), (2915, 27892), (3670, 22154), (4028, 20185), (4037, 20140), (4180, 19451), (5035, 16148), (5830, 13946), (6973, 11660), (7340, 11077), (8074, 10070)]