128229990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{610619}}^1$

素因数の和:610636

約数の個数: 32

約数和(自身を含む): 351717120

約数和(自身を除く): 223487130

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 610619, 1221238, 1831857, 3053095, 3663714, 4274333, 6106190, 8548666, 9159285, 12822999, 18318570, 21371665, 25645998, 42743330, 64114995, 128229990]

約数ペア:

[(1, 128229990), (2, 64114995), (3, 42743330), (5, 25645998), (6, 21371665), (7, 18318570), (10, 12822999), (14, 9159285), (15, 8548666), (21, 6106190), (30, 4274333), (35, 3663714), (42, 3053095), (70, 1831857), (105, 1221238), (210, 610619)]