20457444

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1019}}^1$

素因数の和:1272

約数の個数: 48

約数和(自身を含む): 54835200

約数和(自身を除く): 34377756

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 239, 478, 717, 956, 1019, 1434, 1673, 2038, 2868, 3057, 3346, 4076, 5019, 6114, 6692, 7133, 10038, 12228, 14266, 20076, 21399, 28532, 42798, 85596, 243541, 487082, 730623, 974164, 1461246, 1704787, 2922492, 3409574, 5114361, 6819148, 10228722, 20457444]

約数ペア:

[(1, 20457444), (2, 10228722), (3, 6819148), (4, 5114361), (6, 3409574), (7, 2922492), (12, 1704787), (14, 1461246), (21, 974164), (28, 730623), (42, 487082), (84, 243541), (239, 85596), (478, 42798), (717, 28532), (956, 21399), (1019, 20076), (1434, 14266), (1673, 12228), (2038, 10038), (2868, 7133), (3057, 6692), (3346, 6114), (4076, 5019)]