20404710

素因数分解:

$2^1\times 3^8\times 5^1\times {\mathrm{311}}^1$

素因数の和:342

約数の個数: 72

約数和(自身を含む): 55267056

約数和(自身を除く): 34862346

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 311, 405, 486, 622, 729, 810, 933, 1215, 1458, 1555, 1866, 2187, 2430, 2799, 3110, 3645, 4374, 4665, 5598, 6561, 7290, 8397, 9330, 10935, 13122, 13995, 16794, 21870, 25191, 27990, 32805, 41985, 50382, 65610, 75573, 83970, 125955, 151146, 226719, 251910, 377865, 453438, 680157, 755730, 1133595, 1360314, 2040471, 2267190, 3400785, 4080942, 6801570, 10202355, 20404710]

約数ペア:

[(1, 20404710), (2, 10202355), (3, 6801570), (5, 4080942), (6, 3400785), (9, 2267190), (10, 2040471), (15, 1360314), (18, 1133595), (27, 755730), (30, 680157), (45, 453438), (54, 377865), (81, 251910), (90, 226719), (135, 151146), (162, 125955), (243, 83970), (270, 75573), (311, 65610), (405, 50382), (486, 41985), (622, 32805), (729, 27990), (810, 25191), (933, 21870), (1215, 16794), (1458, 13995), (1555, 13122), (1866, 10935), (2187, 9330), (2430, 8397), (2799, 7290), (3110, 6561), (3645, 5598), (4374, 4665)]