2639840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{2357}}^1$

素因数の和:2379

約数の個数: 48

約数和(自身を含む): 7130592

約数和(自身を除く): 4490752

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 2357, 4714, 9428, 11785, 16499, 18856, 23570, 32998, 37712, 47140, 65996, 75424, 82495, 94280, 131992, 164990, 188560, 263984, 329980, 377120, 527968, 659960, 1319920, 2639840]

約数ペア:

[(1, 2639840), (2, 1319920), (4, 659960), (5, 527968), (7, 377120), (8, 329980), (10, 263984), (14, 188560), (16, 164990), (20, 131992), (28, 94280), (32, 82495), (35, 75424), (40, 65996), (56, 47140), (70, 37712), (80, 32998), (112, 23570), (140, 18856), (160, 16499), (224, 11785), (280, 9428), (560, 4714), (1120, 2357)]