1285705920

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{78781}}^1$

素因数の和:78818

約数の個数: 112

約数和(自身を含む): 4322295648

約数和(自身を除く): 3036589728

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 136, 160, 170, 192, 204, 240, 255, 272, 320, 340, 408, 480, 510, 544, 680, 816, 960, 1020, 1088, 1360, 1632, 2040, 2720, 3264, 4080, 5440, 8160, 16320, 78781, 157562, 236343, 315124, 393905, 472686, 630248, 787810, 945372, 1181715, 1260496, 1339277, 1575620, 1890744, 2363430, 2520992, 2678554, 3151240, 3781488, 4017831, 4726860, 5041984, 5357108, 6302480, 6696385, 7562976, 8035662, 9453720, 10714216, 12604960, 13392770, 15125952, 16071324, 18907440, 20089155, 21428432, 25209920, 26785540, 32142648, 37814880, 40178310, 42856864, 53571080, 64285296, 75629760, 80356620, 85713728, 107142160, 128570592, 160713240, 214284320, 257141184, 321426480, 428568640, 642852960, 1285705920]

約数ペア:

[(1, 1285705920), (2, 642852960), (3, 428568640), (4, 321426480), (5, 257141184), (6, 214284320), (8, 160713240), (10, 128570592), (12, 107142160), (15, 85713728), (16, 80356620), (17, 75629760), (20, 64285296), (24, 53571080), (30, 42856864), (32, 40178310), (34, 37814880), (40, 32142648), (48, 26785540), (51, 25209920), (60, 21428432), (64, 20089155), (68, 18907440), (80, 16071324), (85, 15125952), (96, 13392770), (102, 12604960), (120, 10714216), (136, 9453720), (160, 8035662), (170, 7562976), (192, 6696385), (204, 6302480), (240, 5357108), (255, 5041984), (272, 4726860), (320, 4017831), (340, 3781488), (408, 3151240), (480, 2678554), (510, 2520992), (544, 2363430), (680, 1890744), (816, 1575620), (960, 1339277), (1020, 1260496), (1088, 1181715), (1360, 945372), (1632, 787810), (2040, 630248), (2720, 472686), (3264, 393905), (4080, 315124), (5440, 236343), (8160, 157562), (16320, 78781)]