80245760

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{2239}}^1$

素因数の和:2271

約数の個数: 88

約数和(自身を含む): 220093440

約数和(自身を除く): 139847680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1024, 1120, 1280, 1792, 2239, 2240, 2560, 3584, 4478, 4480, 5120, 7168, 8956, 8960, 11195, 15673, 17912, 17920, 22390, 31346, 35824, 35840, 44780, 62692, 71648, 78365, 89560, 125384, 143296, 156730, 179120, 250768, 286592, 313460, 358240, 501536, 573184, 626920, 716480, 1003072, 1146368, 1253840, 1432960, 2006144, 2292736, 2507680, 2865920, 4012288, 5015360, 5731840, 8024576, 10030720, 11463680, 16049152, 20061440, 40122880, 80245760]

約数ペア:

[(1, 80245760), (2, 40122880), (4, 20061440), (5, 16049152), (7, 11463680), (8, 10030720), (10, 8024576), (14, 5731840), (16, 5015360), (20, 4012288), (28, 2865920), (32, 2507680), (35, 2292736), (40, 2006144), (56, 1432960), (64, 1253840), (70, 1146368), (80, 1003072), (112, 716480), (128, 626920), (140, 573184), (160, 501536), (224, 358240), (256, 313460), (280, 286592), (320, 250768), (448, 179120), (512, 156730), (560, 143296), (640, 125384), (896, 89560), (1024, 78365), (1120, 71648), (1280, 62692), (1792, 44780), (2239, 35840), (2240, 35824), (2560, 31346), (3584, 22390), (4478, 17920), (4480, 17912), (5120, 15673), (7168, 11195), (8956, 8960)]