77840000

素因数分解:

$2^7\times 5^4\times 7^1\times {\mathrm{139}}^1$

素因数の和:180

約数の個数: 160

約数和(自身を含む): 223053600

約数和(自身を除く): 145213600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 125, 128, 139, 140, 160, 175, 200, 224, 250, 278, 280, 320, 350, 400, 448, 500, 556, 560, 625, 640, 695, 700, 800, 875, 896, 973, 1000, 1112, 1120, 1250, 1390, 1400, 1600, 1750, 1946, 2000, 2224, 2240, 2500, 2780, 2800, 3200, 3475, 3500, 3892, 4000, 4375, 4448, 4480, 4865, 5000, 5560, 5600, 6950, 7000, 7784, 8000, 8750, 8896, 9730, 10000, 11120, 11200, 13900, 14000, 15568, 16000, 17375, 17500, 17792, 19460, 20000, 22240, 22400, 24325, 27800, 28000, 31136, 34750, 35000, 38920, 40000, 44480, 48650, 55600, 56000, 62272, 69500, 70000, 77840, 80000, 86875, 88960, 97300, 111200, 112000, 121625, 124544, 139000, 140000, 155680, 173750, 194600, 222400, 243250, 278000, 280000, 311360, 347500, 389200, 444800, 486500, 556000, 560000, 608125, 622720, 695000, 778400, 973000, 1112000, 1216250, 1390000, 1556800, 1946000, 2224000, 2432500, 2780000, 3113600, 3892000, 4865000, 5560000, 7784000, 9730000, 11120000, 15568000, 19460000, 38920000, 77840000]

約数ペア:

[(1, 77840000), (2, 38920000), (4, 19460000), (5, 15568000), (7, 11120000), (8, 9730000), (10, 7784000), (14, 5560000), (16, 4865000), (20, 3892000), (25, 3113600), (28, 2780000), (32, 2432500), (35, 2224000), (40, 1946000), (50, 1556800), (56, 1390000), (64, 1216250), (70, 1112000), (80, 973000), (100, 778400), (112, 695000), (125, 622720), (128, 608125), (139, 560000), (140, 556000), (160, 486500), (175, 444800), (200, 389200), (224, 347500), (250, 311360), (278, 280000), (280, 278000), (320, 243250), (350, 222400), (400, 194600), (448, 173750), (500, 155680), (556, 140000), (560, 139000), (625, 124544), (640, 121625), (695, 112000), (700, 111200), (800, 97300), (875, 88960), (896, 86875), (973, 80000), (1000, 77840), (1112, 70000), (1120, 69500), (1250, 62272), (1390, 56000), (1400, 55600), (1600, 48650), (1750, 44480), (1946, 40000), (2000, 38920), (2224, 35000), (2240, 34750), (2500, 31136), (2780, 28000), (2800, 27800), (3200, 24325), (3475, 22400), (3500, 22240), (3892, 20000), (4000, 19460), (4375, 17792), (4448, 17500), (4480, 17375), (4865, 16000), (5000, 15568), (5560, 14000), (5600, 13900), (6950, 11200), (7000, 11120), (7784, 10000), (8000, 9730), (8750, 8896)]