81891200

素因数分解:

$2^7\times 5^2\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:344

約数の個数: 96

約数和(自身を含む): 204834360

約数和(自身を除く): 122943160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 157, 160, 163, 200, 314, 320, 326, 400, 628, 640, 652, 785, 800, 815, 1256, 1304, 1570, 1600, 1630, 2512, 2608, 3140, 3200, 3260, 3925, 4075, 5024, 5216, 6280, 6520, 7850, 8150, 10048, 10432, 12560, 13040, 15700, 16300, 20096, 20864, 25120, 25591, 26080, 31400, 32600, 50240, 51182, 52160, 62800, 65200, 100480, 102364, 104320, 125600, 127955, 130400, 204728, 251200, 255910, 260800, 409456, 502400, 511820, 521600, 639775, 818912, 1023640, 1279550, 1637824, 2047280, 2559100, 3275648, 4094560, 5118200, 8189120, 10236400, 16378240, 20472800, 40945600, 81891200]

約数ペア:

[(1, 81891200), (2, 40945600), (4, 20472800), (5, 16378240), (8, 10236400), (10, 8189120), (16, 5118200), (20, 4094560), (25, 3275648), (32, 2559100), (40, 2047280), (50, 1637824), (64, 1279550), (80, 1023640), (100, 818912), (128, 639775), (157, 521600), (160, 511820), (163, 502400), (200, 409456), (314, 260800), (320, 255910), (326, 251200), (400, 204728), (628, 130400), (640, 127955), (652, 125600), (785, 104320), (800, 102364), (815, 100480), (1256, 65200), (1304, 62800), (1570, 52160), (1600, 51182), (1630, 50240), (2512, 32600), (2608, 31400), (3140, 26080), (3200, 25591), (3260, 25120), (3925, 20864), (4075, 20096), (5024, 16300), (5216, 15700), (6280, 13040), (6520, 12560), (7850, 10432), (8150, 10048)]