20812080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{5101}}^1$

素因数の和:5134

約数の個数: 80

約数和(自身を含む): 68325984

約数和(自身を除く): 47513904

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 5101, 10202, 15303, 20404, 25505, 30606, 40808, 51010, 61212, 76515, 81616, 86717, 102020, 122424, 153030, 173434, 204040, 244848, 260151, 306060, 346868, 408080, 433585, 520302, 612120, 693736, 867170, 1040604, 1224240, 1300755, 1387472, 1734340, 2081208, 2601510, 3468680, 4162416, 5203020, 6937360, 10406040, 20812080]

約数ペア:

[(1, 20812080), (2, 10406040), (3, 6937360), (4, 5203020), (5, 4162416), (6, 3468680), (8, 2601510), (10, 2081208), (12, 1734340), (15, 1387472), (16, 1300755), (17, 1224240), (20, 1040604), (24, 867170), (30, 693736), (34, 612120), (40, 520302), (48, 433585), (51, 408080), (60, 346868), (68, 306060), (80, 260151), (85, 244848), (102, 204040), (120, 173434), (136, 153030), (170, 122424), (204, 102020), (240, 86717), (255, 81616), (272, 76515), (340, 61212), (408, 51010), (510, 40808), (680, 30606), (816, 25505), (1020, 20404), (1360, 15303), (2040, 10202), (4080, 5101)]