81900900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:191

約数の個数: 216

約数和(自身を含む): 279685224

約数和(自身を除く): 197784324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 25, 30, 34, 36, 45, 50, 51, 53, 60, 68, 75, 85, 90, 100, 101, 102, 106, 150, 153, 159, 170, 180, 202, 204, 212, 225, 255, 265, 300, 303, 306, 318, 340, 404, 425, 450, 477, 505, 510, 530, 606, 612, 636, 765, 795, 850, 900, 901, 909, 954, 1010, 1020, 1060, 1212, 1275, 1325, 1515, 1530, 1590, 1700, 1717, 1802, 1818, 1908, 2020, 2385, 2525, 2550, 2650, 2703, 3030, 3060, 3180, 3434, 3604, 3636, 3825, 3975, 4505, 4545, 4770, 5050, 5100, 5151, 5300, 5353, 5406, 6060, 6868, 7575, 7650, 7950, 8109, 8585, 9010, 9090, 9540, 10100, 10302, 10706, 10812, 11925, 13515, 15150, 15300, 15453, 15900, 16059, 16218, 17170, 18020, 18180, 20604, 21412, 22525, 22725, 23850, 25755, 26765, 27030, 30300, 30906, 32118, 32436, 34340, 40545, 42925, 45050, 45450, 47700, 48177, 51510, 53530, 54060, 61812, 64236, 67575, 77265, 80295, 81090, 85850, 90100, 90900, 91001, 96354, 103020, 107060, 128775, 133825, 135150, 154530, 160590, 162180, 171700, 182002, 192708, 202725, 240885, 257550, 267650, 270300, 273003, 309060, 321180, 364004, 386325, 401475, 405450, 455005, 481770, 515100, 535300, 546006, 772650, 802950, 810900, 819009, 910010, 963540, 1092012, 1204425, 1365015, 1545300, 1605900, 1638018, 1820020, 2275025, 2408850, 2730030, 3276036, 4095045, 4550050, 4817700, 5460060, 6825075, 8190090, 9100100, 13650150, 16380180, 20475225, 27300300, 40950450, 81900900]

約数ペア:

[(1, 81900900), (2, 40950450), (3, 27300300), (4, 20475225), (5, 16380180), (6, 13650150), (9, 9100100), (10, 8190090), (12, 6825075), (15, 5460060), (17, 4817700), (18, 4550050), (20, 4095045), (25, 3276036), (30, 2730030), (34, 2408850), (36, 2275025), (45, 1820020), (50, 1638018), (51, 1605900), (53, 1545300), (60, 1365015), (68, 1204425), (75, 1092012), (85, 963540), (90, 910010), (100, 819009), (101, 810900), (102, 802950), (106, 772650), (150, 546006), (153, 535300), (159, 515100), (170, 481770), (180, 455005), (202, 405450), (204, 401475), (212, 386325), (225, 364004), (255, 321180), (265, 309060), (300, 273003), (303, 270300), (306, 267650), (318, 257550), (340, 240885), (404, 202725), (425, 192708), (450, 182002), (477, 171700), (505, 162180), (510, 160590), (530, 154530), (606, 135150), (612, 133825), (636, 128775), (765, 107060), (795, 103020), (850, 96354), (900, 91001), (901, 90900), (909, 90100), (954, 85850), (1010, 81090), (1020, 80295), (1060, 77265), (1212, 67575), (1275, 64236), (1325, 61812), (1515, 54060), (1530, 53530), (1590, 51510), (1700, 48177), (1717, 47700), (1802, 45450), (1818, 45050), (1908, 42925), (2020, 40545), (2385, 34340), (2525, 32436), (2550, 32118), (2650, 30906), (2703, 30300), (3030, 27030), (3060, 26765), (3180, 25755), (3434, 23850), (3604, 22725), (3636, 22525), (3825, 21412), (3975, 20604), (4505, 18180), (4545, 18020), (4770, 17170), (5050, 16218), (5100, 16059), (5151, 15900), (5300, 15453), (5353, 15300), (5406, 15150), (6060, 13515), (6868, 11925), (7575, 10812), (7650, 10706), (7950, 10302), (8109, 10100), (8585, 9540), (9010, 9090)]