397657890

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{210401}}^1$

素因数の和:210424

約数の個数: 64

約数和(自身を含む): 1211915520

約数和(自身を除く): 814257630

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 210401, 420802, 631203, 1052005, 1262406, 1472807, 1893609, 2104010, 2945614, 3156015, 3787218, 4418421, 5680827, 6312030, 7364035, 8836842, 9468045, 11361654, 13255263, 14728070, 18936090, 22092105, 26510526, 28404135, 39765789, 44184210, 56808270, 66276315, 79531578, 132552630, 198828945, 397657890]

約数ペア:

[(1, 397657890), (2, 198828945), (3, 132552630), (5, 79531578), (6, 66276315), (7, 56808270), (9, 44184210), (10, 39765789), (14, 28404135), (15, 26510526), (18, 22092105), (21, 18936090), (27, 14728070), (30, 13255263), (35, 11361654), (42, 9468045), (45, 8836842), (54, 7364035), (63, 6312030), (70, 5680827), (90, 4418421), (105, 3787218), (126, 3156015), (135, 2945614), (189, 2104010), (210, 1893609), (270, 1472807), (315, 1262406), (378, 1052005), (630, 631203), (945, 420802), (1890, 210401)]