778801970

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{28351}}^1$

素因数の和:28466

約数の個数: 32

約数和(自身を含む): 1457519616

約数和(自身を除く): 678717646

約数列:

[1, 2, 5, 10, 41, 67, 82, 134, 205, 335, 410, 670, 2747, 5494, 13735, 27470, 28351, 56702, 141755, 283510, 1162391, 1899517, 2324782, 3799034, 5811955, 9497585, 11623910, 18995170, 77880197, 155760394, 389400985, 778801970]

約数ペア:

[(1, 778801970), (2, 389400985), (5, 155760394), (10, 77880197), (41, 18995170), (67, 11623910), (82, 9497585), (134, 5811955), (205, 3799034), (335, 2324782), (410, 1899517), (670, 1162391), (2747, 283510), (5494, 141755), (13735, 56702), (27470, 28351)]