31309920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1279}}^1$

素因数の和:1317

約数の個数: 144

約数和(自身を含む): 113218560

約数和(自身を除く): 81908640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 32, 34, 36, 40, 45, 48, 51, 60, 68, 72, 80, 85, 90, 96, 102, 120, 136, 144, 153, 160, 170, 180, 204, 240, 255, 272, 288, 306, 340, 360, 408, 480, 510, 544, 612, 680, 720, 765, 816, 1020, 1224, 1279, 1360, 1440, 1530, 1632, 2040, 2448, 2558, 2720, 3060, 3837, 4080, 4896, 5116, 6120, 6395, 7674, 8160, 10232, 11511, 12240, 12790, 15348, 19185, 20464, 21743, 23022, 24480, 25580, 30696, 38370, 40928, 43486, 46044, 51160, 57555, 61392, 65229, 76740, 86972, 92088, 102320, 108715, 115110, 122784, 130458, 153480, 173944, 184176, 195687, 204640, 217430, 230220, 260916, 306960, 326145, 347888, 368352, 391374, 434860, 460440, 521832, 613920, 652290, 695776, 782748, 869720, 920880, 978435, 1043664, 1304580, 1565496, 1739440, 1841760, 1956870, 2087328, 2609160, 3130992, 3478880, 3913740, 5218320, 6261984, 7827480, 10436640, 15654960, 31309920]

約数ペア:

[(1, 31309920), (2, 15654960), (3, 10436640), (4, 7827480), (5, 6261984), (6, 5218320), (8, 3913740), (9, 3478880), (10, 3130992), (12, 2609160), (15, 2087328), (16, 1956870), (17, 1841760), (18, 1739440), (20, 1565496), (24, 1304580), (30, 1043664), (32, 978435), (34, 920880), (36, 869720), (40, 782748), (45, 695776), (48, 652290), (51, 613920), (60, 521832), (68, 460440), (72, 434860), (80, 391374), (85, 368352), (90, 347888), (96, 326145), (102, 306960), (120, 260916), (136, 230220), (144, 217430), (153, 204640), (160, 195687), (170, 184176), (180, 173944), (204, 153480), (240, 130458), (255, 122784), (272, 115110), (288, 108715), (306, 102320), (340, 92088), (360, 86972), (408, 76740), (480, 65229), (510, 61392), (544, 57555), (612, 51160), (680, 46044), (720, 43486), (765, 40928), (816, 38370), (1020, 30696), (1224, 25580), (1279, 24480), (1360, 23022), (1440, 21743), (1530, 20464), (1632, 19185), (2040, 15348), (2448, 12790), (2558, 12240), (2720, 11511), (3060, 10232), (3837, 8160), (4080, 7674), (4896, 6395), (5116, 6120)]