640054870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{703357}}^1$

素因数の和:703384

約数の個数: 32

約数和(自身を含む): 1417969728

約数和(自身を除く): 777914858

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 703357, 1406714, 3516785, 4923499, 7033570, 9143641, 9846998, 18287282, 24617495, 45718205, 49234990, 64005487, 91436410, 128010974, 320027435, 640054870]

約数ペア:

[(1, 640054870), (2, 320027435), (5, 128010974), (7, 91436410), (10, 64005487), (13, 49234990), (14, 45718205), (26, 24617495), (35, 18287282), (65, 9846998), (70, 9143641), (91, 7033570), (130, 4923499), (182, 3516785), (455, 1406714), (910, 703357)]