82781440

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{9239}}^1$

素因数の和:9267

約数の個数: 72

約数和(自身を含む): 226638720

約数和(自身を除く): 143857280

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, 2240, 4480, 8960, 9239, 18478, 36956, 46195, 64673, 73912, 92390, 129346, 147824, 184780, 258692, 295648, 323365, 369560, 517384, 591296, 646730, 739120, 1034768, 1182592, 1293460, 1478240, 2069536, 2365184, 2586920, 2956480, 4139072, 5173840, 5912960, 8278144, 10347680, 11825920, 16556288, 20695360, 41390720, 82781440]

約数ペア:

[(1, 82781440), (2, 41390720), (4, 20695360), (5, 16556288), (7, 11825920), (8, 10347680), (10, 8278144), (14, 5912960), (16, 5173840), (20, 4139072), (28, 2956480), (32, 2586920), (35, 2365184), (40, 2069536), (56, 1478240), (64, 1293460), (70, 1182592), (80, 1034768), (112, 739120), (128, 646730), (140, 591296), (160, 517384), (224, 369560), (256, 323365), (280, 295648), (320, 258692), (448, 184780), (560, 147824), (640, 129346), (896, 92390), (1120, 73912), (1280, 64673), (1792, 46195), (2240, 36956), (4480, 18478), (8960, 9239)]