19657920

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{20477}}^1$

素因数の和:20497

約数の個数: 56

約数和(自身を含む): 62416944

約数和(自身を除く): 42759024

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 20477, 40954, 61431, 81908, 102385, 122862, 163816, 204770, 245724, 307155, 327632, 409540, 491448, 614310, 655264, 819080, 982896, 1228620, 1310528, 1638160, 1965792, 2457240, 3276320, 3931584, 4914480, 6552640, 9828960, 19657920]

約数ペア:

[(1, 19657920), (2, 9828960), (3, 6552640), (4, 4914480), (5, 3931584), (6, 3276320), (8, 2457240), (10, 1965792), (12, 1638160), (15, 1310528), (16, 1228620), (20, 982896), (24, 819080), (30, 655264), (32, 614310), (40, 491448), (48, 409540), (60, 327632), (64, 307155), (80, 245724), (96, 204770), (120, 163816), (160, 122862), (192, 102385), (240, 81908), (320, 61431), (480, 40954), (960, 20477)]