211881280

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{53}}^1$

素因数の和:145

約数の個数: 168

約数和(自身を含む): 572039496

約数和(自身を除く): 360158216

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 53, 62, 64, 65, 80, 104, 106, 124, 130, 155, 160, 208, 212, 248, 260, 265, 310, 320, 403, 416, 424, 496, 520, 530, 620, 689, 806, 832, 848, 961, 992, 1040, 1060, 1240, 1378, 1612, 1643, 1696, 1922, 1984, 2015, 2080, 2120, 2480, 2756, 3224, 3286, 3392, 3445, 3844, 4030, 4160, 4240, 4805, 4960, 5512, 6448, 6572, 6890, 7688, 8060, 8215, 8480, 9610, 9920, 11024, 12493, 12896, 13144, 13780, 15376, 16120, 16430, 16960, 19220, 21359, 22048, 24986, 25792, 26288, 27560, 30752, 32240, 32860, 38440, 42718, 44096, 49972, 50933, 52576, 55120, 61504, 62465, 64480, 65720, 76880, 85436, 99944, 101866, 105152, 106795, 110240, 124930, 128960, 131440, 153760, 170872, 199888, 203732, 213590, 220480, 249860, 254665, 262880, 307520, 341744, 399776, 407464, 427180, 499720, 509330, 525760, 662129, 683488, 799552, 814928, 854360, 999440, 1018660, 1324258, 1366976, 1629856, 1708720, 1998880, 2037320, 2648516, 3259712, 3310645, 3417440, 3997760, 4074640, 5297032, 6621290, 6834880, 8149280, 10594064, 13242580, 16298560, 21188128, 26485160, 42376256, 52970320, 105940640, 211881280]

約数ペア:

[(1, 211881280), (2, 105940640), (4, 52970320), (5, 42376256), (8, 26485160), (10, 21188128), (13, 16298560), (16, 13242580), (20, 10594064), (26, 8149280), (31, 6834880), (32, 6621290), (40, 5297032), (52, 4074640), (53, 3997760), (62, 3417440), (64, 3310645), (65, 3259712), (80, 2648516), (104, 2037320), (106, 1998880), (124, 1708720), (130, 1629856), (155, 1366976), (160, 1324258), (208, 1018660), (212, 999440), (248, 854360), (260, 814928), (265, 799552), (310, 683488), (320, 662129), (403, 525760), (416, 509330), (424, 499720), (496, 427180), (520, 407464), (530, 399776), (620, 341744), (689, 307520), (806, 262880), (832, 254665), (848, 249860), (961, 220480), (992, 213590), (1040, 203732), (1060, 199888), (1240, 170872), (1378, 153760), (1612, 131440), (1643, 128960), (1696, 124930), (1922, 110240), (1984, 106795), (2015, 105152), (2080, 101866), (2120, 99944), (2480, 85436), (2756, 76880), (3224, 65720), (3286, 64480), (3392, 62465), (3445, 61504), (3844, 55120), (4030, 52576), (4160, 50933), (4240, 49972), (4805, 44096), (4960, 42718), (5512, 38440), (6448, 32860), (6572, 32240), (6890, 30752), (7688, 27560), (8060, 26288), (8215, 25792), (8480, 24986), (9610, 22048), (9920, 21359), (11024, 19220), (12493, 16960), (12896, 16430), (13144, 16120), (13780, 15376)]