2018679975

素因数分解:

$3^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{25561}}^1$

素因数の和:25599

約数の個数: 72

約数和(自身を含む): 4038182512

約数和(自身を除く): 2019502537

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 81, 117, 135, 195, 225, 243, 325, 351, 405, 585, 675, 975, 1053, 1215, 1755, 2025, 2925, 3159, 5265, 6075, 8775, 15795, 25561, 26325, 76683, 78975, 127805, 230049, 332293, 383415, 639025, 690147, 996879, 1150245, 1661465, 1917075, 2070441, 2990637, 3450735, 4984395, 5751225, 6211323, 8307325, 8971911, 10352205, 14953185, 17253675, 24921975, 26915733, 31056615, 44859555, 51761025, 74765925, 80747199, 134578665, 155283075, 224297775, 403735995, 672893325, 2018679975]

約数ペア:

[(1, 2018679975), (3, 672893325), (5, 403735995), (9, 224297775), (13, 155283075), (15, 134578665), (25, 80747199), (27, 74765925), (39, 51761025), (45, 44859555), (65, 31056615), (75, 26915733), (81, 24921975), (117, 17253675), (135, 14953185), (195, 10352205), (225, 8971911), (243, 8307325), (325, 6211323), (351, 5751225), (405, 4984395), (585, 3450735), (675, 2990637), (975, 2070441), (1053, 1917075), (1215, 1661465), (1755, 1150245), (2025, 996879), (2925, 690147), (3159, 639025), (5265, 383415), (6075, 332293), (8775, 230049), (15795, 127805), (25561, 78975), (26325, 76683)]