1279264987

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{3187}}^1$

素因数の和:3619

約数の個数: 32

約数和(自身を含む): 1722438144

約数和(自身を除く): 443173157

約数列:

[1, 7, 11, 13, 77, 91, 143, 401, 1001, 2807, 3187, 4411, 5213, 22309, 30877, 35057, 36491, 41431, 57343, 245399, 290017, 401401, 455741, 1277987, 3190187, 8945909, 14057857, 16613831, 98404999, 116296817, 182752141, 1279264987]

約数ペア:

[(1, 1279264987), (7, 182752141), (11, 116296817), (13, 98404999), (77, 16613831), (91, 14057857), (143, 8945909), (401, 3190187), (1001, 1277987), (2807, 455741), (3187, 401401), (4411, 290017), (5213, 245399), (22309, 57343), (30877, 41431), (35057, 36491)]