1780884

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 5311488

約数和(自身を除く): 3530604

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 37, 42, 63, 74, 84, 111, 126, 148, 191, 222, 252, 259, 333, 382, 444, 518, 573, 666, 764, 777, 1036, 1146, 1332, 1337, 1554, 1719, 2292, 2331, 2674, 3108, 3438, 4011, 4662, 5348, 6876, 7067, 8022, 9324, 12033, 14134, 16044, 21201, 24066, 28268, 42402, 48132, 49469, 63603, 84804, 98938, 127206, 148407, 197876, 254412, 296814, 445221, 593628, 890442, 1780884]

約数ペア:

[(1, 1780884), (2, 890442), (3, 593628), (4, 445221), (6, 296814), (7, 254412), (9, 197876), (12, 148407), (14, 127206), (18, 98938), (21, 84804), (28, 63603), (36, 49469), (37, 48132), (42, 42402), (63, 28268), (74, 24066), (84, 21201), (111, 16044), (126, 14134), (148, 12033), (191, 9324), (222, 8022), (252, 7067), (259, 6876), (333, 5348), (382, 4662), (444, 4011), (518, 3438), (573, 3108), (666, 2674), (764, 2331), (777, 2292), (1036, 1719), (1146, 1554), (1332, 1337)]