18694557440

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{36241}}^1$

素因数の和:36306

約数の個数: 144

約数和(自身を含む): 49780851456

約数和(自身を除く): 31086294016

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 256, 260, 310, 320, 403, 416, 496, 520, 620, 640, 806, 832, 992, 1040, 1240, 1280, 1612, 1664, 1984, 2015, 2080, 2480, 3224, 3328, 3968, 4030, 4160, 4960, 6448, 7936, 8060, 8320, 9920, 12896, 16120, 16640, 19840, 25792, 32240, 36241, 39680, 51584, 64480, 72482, 103168, 128960, 144964, 181205, 257920, 289928, 362410, 471133, 515840, 579856, 724820, 942266, 1123471, 1159712, 1449640, 1884532, 2246942, 2319424, 2355665, 2899280, 3769064, 4493884, 4638848, 4711330, 5617355, 5798560, 7538128, 8987768, 9277696, 9422660, 11234710, 11597120, 14605123, 15076256, 17975536, 18845320, 22469420, 23194240, 29210246, 30152512, 35951072, 37690640, 44938840, 46388480, 58420492, 60305024, 71902144, 73025615, 75381280, 89877680, 116840984, 120610048, 143804288, 146051230, 150762560, 179755360, 233681968, 287608576, 292102460, 301525120, 359510720, 467363936, 584204920, 603050240, 719021440, 934727872, 1168409840, 1438042880, 1869455744, 2336819680, 3738911488, 4673639360, 9347278720, 18694557440]

約数ペア:

[(1, 18694557440), (2, 9347278720), (4, 4673639360), (5, 3738911488), (8, 2336819680), (10, 1869455744), (13, 1438042880), (16, 1168409840), (20, 934727872), (26, 719021440), (31, 603050240), (32, 584204920), (40, 467363936), (52, 359510720), (62, 301525120), (64, 292102460), (65, 287608576), (80, 233681968), (104, 179755360), (124, 150762560), (128, 146051230), (130, 143804288), (155, 120610048), (160, 116840984), (208, 89877680), (248, 75381280), (256, 73025615), (260, 71902144), (310, 60305024), (320, 58420492), (403, 46388480), (416, 44938840), (496, 37690640), (520, 35951072), (620, 30152512), (640, 29210246), (806, 23194240), (832, 22469420), (992, 18845320), (1040, 17975536), (1240, 15076256), (1280, 14605123), (1612, 11597120), (1664, 11234710), (1984, 9422660), (2015, 9277696), (2080, 8987768), (2480, 7538128), (3224, 5798560), (3328, 5617355), (3968, 4711330), (4030, 4638848), (4160, 4493884), (4960, 3769064), (6448, 2899280), (7936, 2355665), (8060, 2319424), (8320, 2246942), (9920, 1884532), (12896, 1449640), (16120, 1159712), (16640, 1123471), (19840, 942266), (25792, 724820), (32240, 579856), (36241, 515840), (39680, 471133), (51584, 362410), (64480, 289928), (72482, 257920), (103168, 181205), (128960, 144964)]