212445555

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1283}}^1$

素因数の和:1400

約数の個数: 64

約数和(自身を含む): 414167040

約数和(自身を除く): 201721485

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 83, 95, 105, 133, 249, 285, 399, 415, 581, 665, 1245, 1283, 1577, 1743, 1995, 2905, 3849, 4731, 6415, 7885, 8715, 8981, 11039, 19245, 23655, 24377, 26943, 33117, 44905, 55195, 73131, 106489, 121885, 134715, 165585, 170639, 319467, 365655, 511917, 532445, 745423, 853195, 1597335, 2023291, 2236269, 2559585, 3727115, 6069873, 10116455, 11181345, 14163037, 30349365, 42489111, 70815185, 212445555]

約数ペア:

[(1, 212445555), (3, 70815185), (5, 42489111), (7, 30349365), (15, 14163037), (19, 11181345), (21, 10116455), (35, 6069873), (57, 3727115), (83, 2559585), (95, 2236269), (105, 2023291), (133, 1597335), (249, 853195), (285, 745423), (399, 532445), (415, 511917), (581, 365655), (665, 319467), (1245, 170639), (1283, 165585), (1577, 134715), (1743, 121885), (1995, 106489), (2905, 73131), (3849, 55195), (4731, 44905), (6415, 33117), (7885, 26943), (8715, 24377), (8981, 23655), (11039, 19245)]