81020640

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9929}}^1$

素因数の和:9964

約数の個数: 96

約数和(自身を含む): 270254880

約数和(自身を除く): 189234240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 68, 80, 85, 96, 102, 120, 136, 160, 170, 204, 240, 255, 272, 340, 408, 480, 510, 544, 680, 816, 1020, 1360, 1632, 2040, 2720, 4080, 8160, 9929, 19858, 29787, 39716, 49645, 59574, 79432, 99290, 119148, 148935, 158864, 168793, 198580, 238296, 297870, 317728, 337586, 397160, 476592, 506379, 595740, 675172, 794320, 843965, 953184, 1012758, 1191480, 1350344, 1588640, 1687930, 2025516, 2382960, 2531895, 2700688, 3375860, 4051032, 4765920, 5063790, 5401376, 6751720, 8102064, 10127580, 13503440, 16204128, 20255160, 27006880, 40510320, 81020640]

約数ペア:

[(1, 81020640), (2, 40510320), (3, 27006880), (4, 20255160), (5, 16204128), (6, 13503440), (8, 10127580), (10, 8102064), (12, 6751720), (15, 5401376), (16, 5063790), (17, 4765920), (20, 4051032), (24, 3375860), (30, 2700688), (32, 2531895), (34, 2382960), (40, 2025516), (48, 1687930), (51, 1588640), (60, 1350344), (68, 1191480), (80, 1012758), (85, 953184), (96, 843965), (102, 794320), (120, 675172), (136, 595740), (160, 506379), (170, 476592), (204, 397160), (240, 337586), (255, 317728), (272, 297870), (340, 238296), (408, 198580), (480, 168793), (510, 158864), (544, 148935), (680, 119148), (816, 99290), (1020, 79432), (1360, 59574), (1632, 49645), (2040, 39716), (2720, 29787), (4080, 19858), (8160, 9929)]