81538560

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{3539}}^1$

素因数の和:3568

約数の個数: 120

約数和(自身を含む): 282470760

約数和(自身を除く): 200932200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 512, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1536, 1920, 2304, 2560, 2880, 3539, 3840, 4608, 5760, 7078, 7680, 10617, 11520, 14156, 17695, 21234, 23040, 28312, 31851, 35390, 42468, 53085, 56624, 63702, 70780, 84936, 106170, 113248, 127404, 141560, 159255, 169872, 212340, 226496, 254808, 283120, 318510, 339744, 424680, 452992, 509616, 566240, 637020, 679488, 849360, 905984, 1019232, 1132480, 1274040, 1358976, 1698720, 1811968, 2038464, 2264960, 2548080, 2717952, 3397440, 4076928, 4529920, 5096160, 5435904, 6794880, 8153856, 9059840, 10192320, 13589760, 16307712, 20384640, 27179520, 40769280, 81538560]

約数ペア:

[(1, 81538560), (2, 40769280), (3, 27179520), (4, 20384640), (5, 16307712), (6, 13589760), (8, 10192320), (9, 9059840), (10, 8153856), (12, 6794880), (15, 5435904), (16, 5096160), (18, 4529920), (20, 4076928), (24, 3397440), (30, 2717952), (32, 2548080), (36, 2264960), (40, 2038464), (45, 1811968), (48, 1698720), (60, 1358976), (64, 1274040), (72, 1132480), (80, 1019232), (90, 905984), (96, 849360), (120, 679488), (128, 637020), (144, 566240), (160, 509616), (180, 452992), (192, 424680), (240, 339744), (256, 318510), (288, 283120), (320, 254808), (360, 226496), (384, 212340), (480, 169872), (512, 159255), (576, 141560), (640, 127404), (720, 113248), (768, 106170), (960, 84936), (1152, 70780), (1280, 63702), (1440, 56624), (1536, 53085), (1920, 42468), (2304, 35390), (2560, 31851), (2880, 28312), (3539, 23040), (3840, 21234), (4608, 17695), (5760, 14156), (7078, 11520), (7680, 10617)]