78631680

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{20477}}^1$

素因数の和:20501

約数の個数: 72

約数和(自身を含む): 251142192

約数和(自身を除く): 172510512

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, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 20477, 40954, 61431, 81908, 102385, 122862, 163816, 204770, 245724, 307155, 327632, 409540, 491448, 614310, 655264, 819080, 982896, 1228620, 1310528, 1638160, 1965792, 2457240, 2621056, 3276320, 3931584, 4914480, 5242112, 6552640, 7863168, 9828960, 13105280, 15726336, 19657920, 26210560, 39315840, 78631680]

約数ペア:

[(1, 78631680), (2, 39315840), (3, 26210560), (4, 19657920), (5, 15726336), (6, 13105280), (8, 9828960), (10, 7863168), (12, 6552640), (15, 5242112), (16, 4914480), (20, 3931584), (24, 3276320), (30, 2621056), (32, 2457240), (40, 1965792), (48, 1638160), (60, 1310528), (64, 1228620), (80, 982896), (96, 819080), (120, 655264), (128, 614310), (160, 491448), (192, 409540), (240, 327632), (256, 307155), (320, 245724), (384, 204770), (480, 163816), (640, 122862), (768, 102385), (960, 81908), (1280, 61431), (1920, 40954), (3840, 20477)]