19760494

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:245

約数の個数: 48

約数和(自身を含む): 35970480

約数和(自身を除く): 16209986

約数列:

[1, 2, 13, 17, 19, 26, 34, 38, 169, 181, 221, 247, 323, 338, 362, 442, 494, 646, 2353, 2873, 3077, 3211, 3439, 4199, 4706, 5746, 6154, 6422, 6878, 8398, 30589, 40001, 44707, 54587, 58463, 61178, 80002, 89414, 109174, 116926, 520013, 581191, 760019, 1040026, 1162382, 1520038, 9880247, 19760494]

約数ペア:

[(1, 19760494), (2, 9880247), (13, 1520038), (17, 1162382), (19, 1040026), (26, 760019), (34, 581191), (38, 520013), (169, 116926), (181, 109174), (221, 89414), (247, 80002), (323, 61178), (338, 58463), (362, 54587), (442, 44707), (494, 40001), (646, 30589), (2353, 8398), (2873, 6878), (3077, 6422), (3211, 6154), (3439, 5746), (4199, 4706)]