71208020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2659}}^1$

素因数の和:2784

約数の個数: 48

約数和(自身を含む): 162664320

約数和(自身を除く): 91456300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 103, 130, 206, 260, 412, 515, 1030, 1339, 2060, 2659, 2678, 5318, 5356, 6695, 10636, 13295, 13390, 26590, 26780, 34567, 53180, 69134, 138268, 172835, 273877, 345670, 547754, 691340, 1095508, 1369385, 2738770, 3560401, 5477540, 7120802, 14241604, 17802005, 35604010, 71208020]

約数ペア:

[(1, 71208020), (2, 35604010), (4, 17802005), (5, 14241604), (10, 7120802), (13, 5477540), (20, 3560401), (26, 2738770), (52, 1369385), (65, 1095508), (103, 691340), (130, 547754), (206, 345670), (260, 273877), (412, 172835), (515, 138268), (1030, 69134), (1339, 53180), (2060, 34567), (2659, 26780), (2678, 26590), (5318, 13390), (5356, 13295), (6695, 10636)]