128419670

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{21803}}^1$

素因数の和:21860

約数の個数: 32

約数和(自身を含む): 251182080

約数和(自身を除く): 122762410

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 155, 190, 310, 589, 1178, 2945, 5890, 21803, 43606, 109015, 218030, 414257, 675893, 828514, 1351786, 2071285, 3379465, 4142570, 6758930, 12841967, 25683934, 64209835, 128419670]

約数ペア:

[(1, 128419670), (2, 64209835), (5, 25683934), (10, 12841967), (19, 6758930), (31, 4142570), (38, 3379465), (62, 2071285), (95, 1351786), (155, 828514), (190, 675893), (310, 414257), (589, 218030), (1178, 109015), (2945, 43606), (5890, 21803)]