81938560

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:246

約数の個数: 128

約数和(自身を含む): 217676160

約数和(自身を除く): 135737600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 103, 110, 113, 128, 160, 176, 206, 220, 226, 320, 352, 412, 440, 452, 515, 565, 640, 704, 824, 880, 904, 1030, 1130, 1133, 1243, 1408, 1648, 1760, 1808, 2060, 2260, 2266, 2486, 3296, 3520, 3616, 4120, 4520, 4532, 4972, 5665, 6215, 6592, 7040, 7232, 8240, 9040, 9064, 9944, 11330, 11639, 12430, 13184, 14464, 16480, 18080, 18128, 19888, 22660, 23278, 24860, 32960, 36160, 36256, 39776, 45320, 46556, 49720, 58195, 65920, 72320, 72512, 79552, 90640, 93112, 99440, 116390, 128029, 145024, 159104, 181280, 186224, 198880, 232780, 256058, 362560, 372448, 397760, 465560, 512116, 640145, 725120, 744896, 795520, 931120, 1024232, 1280290, 1489792, 1862240, 2048464, 2560580, 3724480, 4096928, 5121160, 7448960, 8193856, 10242320, 16387712, 20484640, 40969280, 81938560]

約数ペア:

[(1, 81938560), (2, 40969280), (4, 20484640), (5, 16387712), (8, 10242320), (10, 8193856), (11, 7448960), (16, 5121160), (20, 4096928), (22, 3724480), (32, 2560580), (40, 2048464), (44, 1862240), (55, 1489792), (64, 1280290), (80, 1024232), (88, 931120), (103, 795520), (110, 744896), (113, 725120), (128, 640145), (160, 512116), (176, 465560), (206, 397760), (220, 372448), (226, 362560), (320, 256058), (352, 232780), (412, 198880), (440, 186224), (452, 181280), (515, 159104), (565, 145024), (640, 128029), (704, 116390), (824, 99440), (880, 93112), (904, 90640), (1030, 79552), (1130, 72512), (1133, 72320), (1243, 65920), (1408, 58195), (1648, 49720), (1760, 46556), (1808, 45320), (2060, 39776), (2260, 36256), (2266, 36160), (2486, 32960), (3296, 24860), (3520, 23278), (3616, 22660), (4120, 19888), (4520, 18128), (4532, 18080), (4972, 16480), (5665, 14464), (6215, 13184), (6592, 12430), (7040, 11639), (7232, 11330), (8240, 9944), (9040, 9064)]