199961820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{647}}^1$

素因数の和:780

約数の個数: 144

約数和(自身を含む): 649591488

約数和(自身を除く): 449629668

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, 647, 765, 909, 1010, 1020, 1212, 1294, 1515, 1530, 1717, 1818, 1941, 2020, 2588, 3030, 3060, 3235, 3434, 3636, 3882, 4545, 5151, 5823, 6060, 6470, 6868, 7764, 8585, 9090, 9705, 10302, 10999, 11646, 12940, 15453, 17170, 18180, 19410, 20604, 21998, 23292, 25755, 29115, 30906, 32997, 34340, 38820, 43996, 51510, 54995, 58230, 61812, 65347, 65994, 77265, 98991, 103020, 109990, 116460, 130694, 131988, 154530, 164985, 196041, 197982, 219980, 261388, 309060, 326735, 329970, 392082, 395964, 494955, 588123, 653470, 659940, 784164, 980205, 989910, 1110899, 1176246, 1306940, 1960410, 1979820, 2221798, 2352492, 2940615, 3332697, 3920820, 4443596, 5554495, 5881230, 6665394, 9998091, 11108990, 11762460, 13330788, 16663485, 19996182, 22217980, 33326970, 39992364, 49990455, 66653940, 99980910, 199961820]

約数ペア:

[(1, 199961820), (2, 99980910), (3, 66653940), (4, 49990455), (5, 39992364), (6, 33326970), (9, 22217980), (10, 19996182), (12, 16663485), (15, 13330788), (17, 11762460), (18, 11108990), (20, 9998091), (30, 6665394), (34, 5881230), (36, 5554495), (45, 4443596), (51, 3920820), (60, 3332697), (68, 2940615), (85, 2352492), (90, 2221798), (101, 1979820), (102, 1960410), (153, 1306940), (170, 1176246), (180, 1110899), (202, 989910), (204, 980205), (255, 784164), (303, 659940), (306, 653470), (340, 588123), (404, 494955), (505, 395964), (510, 392082), (606, 329970), (612, 326735), (647, 309060), (765, 261388), (909, 219980), (1010, 197982), (1020, 196041), (1212, 164985), (1294, 154530), (1515, 131988), (1530, 130694), (1717, 116460), (1818, 109990), (1941, 103020), (2020, 98991), (2588, 77265), (3030, 65994), (3060, 65347), (3235, 61812), (3434, 58230), (3636, 54995), (3882, 51510), (4545, 43996), (5151, 38820), (5823, 34340), (6060, 32997), (6470, 30906), (6868, 29115), (7764, 25755), (8585, 23292), (9090, 21998), (9705, 20604), (10302, 19410), (10999, 18180), (11646, 17170), (12940, 15453)]