199912804

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{509}}^1$

素因数の和:629

約数の個数: 72

約数和(自身を含む): 439024320

約数和(自身を除く): 239111516

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 83, 91, 166, 169, 182, 332, 338, 364, 509, 581, 676, 1018, 1079, 1162, 1183, 2036, 2158, 2324, 2366, 3563, 4316, 4732, 6617, 7126, 7553, 13234, 14027, 14252, 15106, 26468, 28054, 30212, 42247, 46319, 56108, 84494, 86021, 92638, 98189, 168988, 172042, 185276, 196378, 295729, 344084, 392756, 549211, 591458, 602147, 1098422, 1182916, 1204294, 2196844, 2408588, 3844477, 7139743, 7688954, 14279486, 15377908, 28558972, 49978201, 99956402, 199912804]

約数ペア:

[(1, 199912804), (2, 99956402), (4, 49978201), (7, 28558972), (13, 15377908), (14, 14279486), (26, 7688954), (28, 7139743), (52, 3844477), (83, 2408588), (91, 2196844), (166, 1204294), (169, 1182916), (182, 1098422), (332, 602147), (338, 591458), (364, 549211), (509, 392756), (581, 344084), (676, 295729), (1018, 196378), (1079, 185276), (1162, 172042), (1183, 168988), (2036, 98189), (2158, 92638), (2324, 86021), (2366, 84494), (3563, 56108), (4316, 46319), (4732, 42247), (6617, 30212), (7126, 28054), (7553, 26468), (13234, 15106), (14027, 14252)]