20805723960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{240473}}^1$

素因数の和:240597

約数の個数: 128

約数和(自身を含む): 72026772480

約数和(自身を除く): 51221048520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 103, 105, 120, 140, 168, 206, 210, 280, 309, 412, 420, 515, 618, 721, 824, 840, 1030, 1236, 1442, 1545, 2060, 2163, 2472, 2884, 3090, 3605, 4120, 4326, 5768, 6180, 7210, 8652, 10815, 12360, 14420, 17304, 21630, 28840, 43260, 86520, 240473, 480946, 721419, 961892, 1202365, 1442838, 1683311, 1923784, 2404730, 2885676, 3366622, 3607095, 4809460, 5049933, 5771352, 6733244, 7214190, 8416555, 9618920, 10099866, 13466488, 14428380, 16833110, 20199732, 24768719, 25249665, 28856760, 33666220, 40399464, 49537438, 50499330, 67332440, 74306157, 99074876, 100998660, 123843595, 148612314, 173381033, 198149752, 201997320, 247687190, 297224628, 346762066, 371530785, 495374380, 520143099, 594449256, 693524132, 743061570, 866905165, 990748760, 1040286198, 1387048264, 1486123140, 1733810330, 2080572396, 2600715495, 2972246280, 3467620660, 4161144792, 5201430990, 6935241320, 10402861980, 20805723960]

約数ペア:

[(1, 20805723960), (2, 10402861980), (3, 6935241320), (4, 5201430990), (5, 4161144792), (6, 3467620660), (7, 2972246280), (8, 2600715495), (10, 2080572396), (12, 1733810330), (14, 1486123140), (15, 1387048264), (20, 1040286198), (21, 990748760), (24, 866905165), (28, 743061570), (30, 693524132), (35, 594449256), (40, 520143099), (42, 495374380), (56, 371530785), (60, 346762066), (70, 297224628), (84, 247687190), (103, 201997320), (105, 198149752), (120, 173381033), (140, 148612314), (168, 123843595), (206, 100998660), (210, 99074876), (280, 74306157), (309, 67332440), (412, 50499330), (420, 49537438), (515, 40399464), (618, 33666220), (721, 28856760), (824, 25249665), (840, 24768719), (1030, 20199732), (1236, 16833110), (1442, 14428380), (1545, 13466488), (2060, 10099866), (2163, 9618920), (2472, 8416555), (2884, 7214190), (3090, 6733244), (3605, 5771352), (4120, 5049933), (4326, 4809460), (5768, 3607095), (6180, 3366622), (7210, 2885676), (8652, 2404730), (10815, 1923784), (12360, 1683311), (14420, 1442838), (17304, 1202365), (21630, 961892), (28840, 721419), (43260, 480946), (86520, 240473)]