20061440

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{2239}}^1$

素因数の和:2267

約数の個数: 72

約数和(自身を含む): 54942720

約数和(自身を除く): 34881280

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, 560, 640, 896, 1120, 1280, 1792, 2239, 2240, 4478, 4480, 8956, 8960, 11195, 15673, 17912, 22390, 31346, 35824, 44780, 62692, 71648, 78365, 89560, 125384, 143296, 156730, 179120, 250768, 286592, 313460, 358240, 501536, 573184, 626920, 716480, 1003072, 1253840, 1432960, 2006144, 2507680, 2865920, 4012288, 5015360, 10030720, 20061440]

約数ペア:

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