12981375

素因数分解:

$3^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{1049}}^1$

素因数の和:1081

約数の個数: 48

約数和(自身を含む): 25552800

約数和(自身を除く): 12571425

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 125, 165, 225, 275, 375, 495, 825, 1049, 1125, 1375, 2475, 3147, 4125, 5245, 9441, 11539, 12375, 15735, 26225, 34617, 47205, 57695, 78675, 103851, 131125, 173085, 236025, 288475, 393375, 519255, 865425, 1180125, 1442375, 2596275, 4327125, 12981375]

約数ペア:

[(1, 12981375), (3, 4327125), (5, 2596275), (9, 1442375), (11, 1180125), (15, 865425), (25, 519255), (33, 393375), (45, 288475), (55, 236025), (75, 173085), (99, 131125), (125, 103851), (165, 78675), (225, 57695), (275, 47205), (375, 34617), (495, 26225), (825, 15735), (1049, 12375), (1125, 11539), (1375, 9441), (2475, 5245), (3147, 4125)]