20873280

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1279}}^1$

素因数の和:1316

約数の個数: 112

約数和(自身を含む): 70225920

約数和(自身を除く): 49352640

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, 1279, 1360, 1632, 2040, 2558, 2720, 3264, 3837, 4080, 5116, 5440, 6395, 7674, 8160, 10232, 12790, 15348, 16320, 19185, 20464, 21743, 25580, 30696, 38370, 40928, 43486, 51160, 61392, 65229, 76740, 81856, 86972, 102320, 108715, 122784, 130458, 153480, 173944, 204640, 217430, 245568, 260916, 306960, 326145, 347888, 409280, 434860, 521832, 613920, 652290, 695776, 869720, 1043664, 1227840, 1304580, 1391552, 1739440, 2087328, 2609160, 3478880, 4174656, 5218320, 6957760, 10436640, 20873280]

約数ペア:

[(1, 20873280), (2, 10436640), (3, 6957760), (4, 5218320), (5, 4174656), (6, 3478880), (8, 2609160), (10, 2087328), (12, 1739440), (15, 1391552), (16, 1304580), (17, 1227840), (20, 1043664), (24, 869720), (30, 695776), (32, 652290), (34, 613920), (40, 521832), (48, 434860), (51, 409280), (60, 347888), (64, 326145), (68, 306960), (80, 260916), (85, 245568), (96, 217430), (102, 204640), (120, 173944), (136, 153480), (160, 130458), (170, 122784), (192, 108715), (204, 102320), (240, 86972), (255, 81856), (272, 76740), (320, 65229), (340, 61392), (408, 51160), (480, 43486), (510, 40928), (544, 38370), (680, 30696), (816, 25580), (960, 21743), (1020, 20464), (1088, 19185), (1279, 16320), (1360, 15348), (1632, 12790), (2040, 10232), (2558, 8160), (2720, 7674), (3264, 6395), (3837, 5440), (4080, 5116)]