17980020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:182

約数の個数: 144

約数和(自身を含む): 58810752

約数和(自身を除く): 40830732

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 43, 45, 46, 60, 69, 86, 90, 92, 101, 115, 129, 138, 172, 180, 202, 207, 215, 230, 258, 276, 303, 345, 387, 404, 414, 430, 460, 505, 516, 606, 645, 690, 774, 828, 860, 909, 989, 1010, 1035, 1212, 1290, 1380, 1515, 1548, 1818, 1935, 1978, 2020, 2070, 2323, 2580, 2967, 3030, 3636, 3870, 3956, 4140, 4343, 4545, 4646, 4945, 5934, 6060, 6969, 7740, 8686, 8901, 9090, 9292, 9890, 11615, 11868, 13029, 13938, 14835, 17372, 17802, 18180, 19780, 20907, 21715, 23230, 26058, 27876, 29670, 34845, 35604, 39087, 41814, 43430, 44505, 46460, 52116, 59340, 65145, 69690, 78174, 83628, 86860, 89010, 99889, 104535, 130290, 139380, 156348, 178020, 195435, 199778, 209070, 260580, 299667, 390870, 399556, 418140, 499445, 599334, 781740, 899001, 998890, 1198668, 1498335, 1798002, 1997780, 2996670, 3596004, 4495005, 5993340, 8990010, 17980020]

約数ペア:

[(1, 17980020), (2, 8990010), (3, 5993340), (4, 4495005), (5, 3596004), (6, 2996670), (9, 1997780), (10, 1798002), (12, 1498335), (15, 1198668), (18, 998890), (20, 899001), (23, 781740), (30, 599334), (36, 499445), (43, 418140), (45, 399556), (46, 390870), (60, 299667), (69, 260580), (86, 209070), (90, 199778), (92, 195435), (101, 178020), (115, 156348), (129, 139380), (138, 130290), (172, 104535), (180, 99889), (202, 89010), (207, 86860), (215, 83628), (230, 78174), (258, 69690), (276, 65145), (303, 59340), (345, 52116), (387, 46460), (404, 44505), (414, 43430), (430, 41814), (460, 39087), (505, 35604), (516, 34845), (606, 29670), (645, 27876), (690, 26058), (774, 23230), (828, 21715), (860, 20907), (909, 19780), (989, 18180), (1010, 17802), (1035, 17372), (1212, 14835), (1290, 13938), (1380, 13029), (1515, 11868), (1548, 11615), (1818, 9890), (1935, 9292), (1978, 9090), (2020, 8901), (2070, 8686), (2323, 7740), (2580, 6969), (2967, 6060), (3030, 5934), (3636, 4945), (3870, 4646), (3956, 4545), (4140, 4343)]