81106500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{139}}^1\times {\mathrm{389}}^1$

素因数の和:550

約数の個数: 96

約数和(自身を含む): 238492800

約数和(自身を除く): 157386300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 125, 139, 150, 250, 278, 300, 375, 389, 417, 500, 556, 695, 750, 778, 834, 1167, 1390, 1500, 1556, 1668, 1945, 2085, 2334, 2780, 3475, 3890, 4170, 4668, 5835, 6950, 7780, 8340, 9725, 10425, 11670, 13900, 17375, 19450, 20850, 23340, 29175, 34750, 38900, 41700, 48625, 52125, 54071, 58350, 69500, 97250, 104250, 108142, 116700, 145875, 162213, 194500, 208500, 216284, 270355, 291750, 324426, 540710, 583500, 648852, 811065, 1081420, 1351775, 1622130, 2703550, 3244260, 4055325, 5407100, 6758875, 8110650, 13517750, 16221300, 20276625, 27035500, 40553250, 81106500]

約数ペア:

[(1, 81106500), (2, 40553250), (3, 27035500), (4, 20276625), (5, 16221300), (6, 13517750), (10, 8110650), (12, 6758875), (15, 5407100), (20, 4055325), (25, 3244260), (30, 2703550), (50, 1622130), (60, 1351775), (75, 1081420), (100, 811065), (125, 648852), (139, 583500), (150, 540710), (250, 324426), (278, 291750), (300, 270355), (375, 216284), (389, 208500), (417, 194500), (500, 162213), (556, 145875), (695, 116700), (750, 108142), (778, 104250), (834, 97250), (1167, 69500), (1390, 58350), (1500, 54071), (1556, 52125), (1668, 48625), (1945, 41700), (2085, 38900), (2334, 34750), (2780, 29175), (3475, 23340), (3890, 20850), (4170, 19450), (4668, 17375), (5835, 13900), (6950, 11670), (7780, 10425), (8340, 9725)]