20817180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6803}}^1$

素因数の和:6835

約数の個数: 72

約数和(自身を含む): 66869712

約数和(自身を除く): 46052532

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 6803, 13606, 20409, 27212, 34015, 40818, 61227, 68030, 81636, 102045, 115651, 122454, 136060, 204090, 231302, 244908, 306135, 346953, 408180, 462604, 578255, 612270, 693906, 1040859, 1156510, 1224540, 1387812, 1734765, 2081718, 2313020, 3469530, 4163436, 5204295, 6939060, 10408590, 20817180]

約数ペア:

[(1, 20817180), (2, 10408590), (3, 6939060), (4, 5204295), (5, 4163436), (6, 3469530), (9, 2313020), (10, 2081718), (12, 1734765), (15, 1387812), (17, 1224540), (18, 1156510), (20, 1040859), (30, 693906), (34, 612270), (36, 578255), (45, 462604), (51, 408180), (60, 346953), (68, 306135), (85, 244908), (90, 231302), (102, 204090), (153, 136060), (170, 122454), (180, 115651), (204, 102045), (255, 81636), (306, 68030), (340, 61227), (510, 40818), (612, 34015), (765, 27212), (1020, 20409), (1530, 13606), (3060, 6803)]