81556800

素因数分解:

$2^6\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1307}}^1$

素因数の和:1345

約数の個数: 168

約数和(自身を含む): 288377376

約数和(自身を除く): 206820576

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 32, 39, 40, 48, 50, 52, 60, 64, 65, 75, 78, 80, 96, 100, 104, 120, 130, 150, 156, 160, 192, 195, 200, 208, 240, 260, 300, 312, 320, 325, 390, 400, 416, 480, 520, 600, 624, 650, 780, 800, 832, 960, 975, 1040, 1200, 1248, 1300, 1307, 1560, 1600, 1950, 2080, 2400, 2496, 2600, 2614, 3120, 3900, 3921, 4160, 4800, 5200, 5228, 6240, 6535, 7800, 7842, 10400, 10456, 12480, 13070, 15600, 15684, 16991, 19605, 20800, 20912, 26140, 31200, 31368, 32675, 33982, 39210, 41824, 50973, 52280, 62400, 62736, 65350, 67964, 78420, 83648, 84955, 98025, 101946, 104560, 125472, 130700, 135928, 156840, 169910, 196050, 203892, 209120, 250944, 254865, 261400, 271856, 313680, 339820, 392100, 407784, 418240, 424775, 509730, 522800, 543712, 627360, 679640, 784200, 815568, 849550, 1019460, 1045600, 1087424, 1254720, 1274325, 1359280, 1568400, 1631136, 1699100, 2038920, 2091200, 2548650, 2718560, 3136800, 3262272, 3398200, 4077840, 5097300, 5437120, 6273600, 6796400, 8155680, 10194600, 13592800, 16311360, 20389200, 27185600, 40778400, 81556800]

約数ペア:

[(1, 81556800), (2, 40778400), (3, 27185600), (4, 20389200), (5, 16311360), (6, 13592800), (8, 10194600), (10, 8155680), (12, 6796400), (13, 6273600), (15, 5437120), (16, 5097300), (20, 4077840), (24, 3398200), (25, 3262272), (26, 3136800), (30, 2718560), (32, 2548650), (39, 2091200), (40, 2038920), (48, 1699100), (50, 1631136), (52, 1568400), (60, 1359280), (64, 1274325), (65, 1254720), (75, 1087424), (78, 1045600), (80, 1019460), (96, 849550), (100, 815568), (104, 784200), (120, 679640), (130, 627360), (150, 543712), (156, 522800), (160, 509730), (192, 424775), (195, 418240), (200, 407784), (208, 392100), (240, 339820), (260, 313680), (300, 271856), (312, 261400), (320, 254865), (325, 250944), (390, 209120), (400, 203892), (416, 196050), (480, 169910), (520, 156840), (600, 135928), (624, 130700), (650, 125472), (780, 104560), (800, 101946), (832, 98025), (960, 84955), (975, 83648), (1040, 78420), (1200, 67964), (1248, 65350), (1300, 62736), (1307, 62400), (1560, 52280), (1600, 50973), (1950, 41824), (2080, 39210), (2400, 33982), (2496, 32675), (2600, 31368), (2614, 31200), (3120, 26140), (3900, 20912), (3921, 20800), (4160, 19605), (4800, 16991), (5200, 15684), (5228, 15600), (6240, 13070), (6535, 12480), (7800, 10456), (7842, 10400)]