31215060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^2$

素因数の和:234

約数の個数: 108

約数和(自身を含む): 101257884

約数和(自身を除く): 70042824

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, 101, 102, 153, 170, 180, 202, 204, 255, 303, 306, 340, 404, 505, 510, 606, 612, 765, 909, 1010, 1020, 1212, 1515, 1530, 1717, 1818, 2020, 3030, 3060, 3434, 3636, 4545, 5151, 6060, 6868, 8585, 9090, 10201, 10302, 15453, 17170, 18180, 20402, 20604, 25755, 30603, 30906, 34340, 40804, 51005, 51510, 61206, 61812, 77265, 91809, 102010, 103020, 122412, 153015, 154530, 173417, 183618, 204020, 306030, 309060, 346834, 367236, 459045, 520251, 612060, 693668, 867085, 918090, 1040502, 1560753, 1734170, 1836180, 2081004, 2601255, 3121506, 3468340, 5202510, 6243012, 7803765, 10405020, 15607530, 31215060]

約数ペア:

[(1, 31215060), (2, 15607530), (3, 10405020), (4, 7803765), (5, 6243012), (6, 5202510), (9, 3468340), (10, 3121506), (12, 2601255), (15, 2081004), (17, 1836180), (18, 1734170), (20, 1560753), (30, 1040502), (34, 918090), (36, 867085), (45, 693668), (51, 612060), (60, 520251), (68, 459045), (85, 367236), (90, 346834), (101, 309060), (102, 306030), (153, 204020), (170, 183618), (180, 173417), (202, 154530), (204, 153015), (255, 122412), (303, 103020), (306, 102010), (340, 91809), (404, 77265), (505, 61812), (510, 61206), (606, 51510), (612, 51005), (765, 40804), (909, 34340), (1010, 30906), (1020, 30603), (1212, 25755), (1515, 20604), (1530, 20402), (1717, 18180), (1818, 17170), (2020, 15453), (3030, 10302), (3060, 10201), (3434, 9090), (3636, 8585), (4545, 6868), (5151, 6060)]