640780798

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{673}}^1\times {\mathrm{1447}}^1$

素因数の和:2176

約数の個数: 32

約数和(自身を含む): 1124296704

約数和(自身を除く): 483515906

約数列:

[1, 2, 7, 14, 47, 94, 329, 658, 673, 1346, 1447, 2894, 4711, 9422, 10129, 20258, 31631, 63262, 68009, 136018, 221417, 442834, 476063, 952126, 973831, 1947662, 6816817, 13633634, 45770057, 91540114, 320390399, 640780798]

約数ペア:

[(1, 640780798), (2, 320390399), (7, 91540114), (14, 45770057), (47, 13633634), (94, 6816817), (329, 1947662), (658, 973831), (673, 952126), (1346, 476063), (1447, 442834), (2894, 221417), (4711, 136018), (9422, 68009), (10129, 63262), (20258, 31631)]