51499120

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1993}}^1$

素因数の和:2042

約数の個数: 80

約数和(自身を含む): 133518240

約数和(自身を除く): 82019120

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 272, 304, 323, 340, 380, 646, 680, 760, 1292, 1360, 1520, 1615, 1993, 2584, 3230, 3986, 5168, 6460, 7972, 9965, 12920, 15944, 19930, 25840, 31888, 33881, 37867, 39860, 67762, 75734, 79720, 135524, 151468, 159440, 169405, 189335, 271048, 302936, 338810, 378670, 542096, 605872, 643739, 677620, 757340, 1287478, 1355240, 1514680, 2574956, 2710480, 3029360, 3218695, 5149912, 6437390, 10299824, 12874780, 25749560, 51499120]

約数ペア:

[(1, 51499120), (2, 25749560), (4, 12874780), (5, 10299824), (8, 6437390), (10, 5149912), (16, 3218695), (17, 3029360), (19, 2710480), (20, 2574956), (34, 1514680), (38, 1355240), (40, 1287478), (68, 757340), (76, 677620), (80, 643739), (85, 605872), (95, 542096), (136, 378670), (152, 338810), (170, 302936), (190, 271048), (272, 189335), (304, 169405), (323, 159440), (340, 151468), (380, 135524), (646, 79720), (680, 75734), (760, 67762), (1292, 39860), (1360, 37867), (1520, 33881), (1615, 31888), (1993, 25840), (2584, 19930), (3230, 15944), (3986, 12920), (5168, 9965), (6460, 7972)]