397745478

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{188863}}^1$

素因数の和:188890

約数の個数: 40

約数和(自身を含む): 959806848

約数和(自身を除く): 562061370

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 351, 702, 1053, 2106, 188863, 377726, 566589, 1133178, 1699767, 2455219, 3399534, 4910438, 5099301, 7365657, 10198602, 14731314, 15297903, 22096971, 30595806, 44193942, 66290913, 132581826, 198872739, 397745478]

約数ペア:

[(1, 397745478), (2, 198872739), (3, 132581826), (6, 66290913), (9, 44193942), (13, 30595806), (18, 22096971), (26, 15297903), (27, 14731314), (39, 10198602), (54, 7365657), (78, 5099301), (81, 4910438), (117, 3399534), (162, 2455219), (234, 1699767), (351, 1133178), (702, 566589), (1053, 377726), (2106, 188863)]