68890000

素因数分解:

$2^4\times 5^4\times {\mathrm{83}}^2$

素因数の和:194

約数の個数: 75

約数和(自身を含む): 168823303

約数和(自身を除く): 99933303

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 83, 100, 125, 166, 200, 250, 332, 400, 415, 500, 625, 664, 830, 1000, 1250, 1328, 1660, 2000, 2075, 2500, 3320, 4150, 5000, 6640, 6889, 8300, 10000, 10375, 13778, 16600, 20750, 27556, 33200, 34445, 41500, 51875, 55112, 68890, 83000, 103750, 110224, 137780, 166000, 172225, 207500, 275560, 344450, 415000, 551120, 688900, 830000, 861125, 1377800, 1722250, 2755600, 3444500, 4305625, 6889000, 8611250, 13778000, 17222500, 34445000, 68890000]

約数ペア:

[(1, 68890000), (2, 34445000), (4, 17222500), (5, 13778000), (8, 8611250), (10, 6889000), (16, 4305625), (20, 3444500), (25, 2755600), (40, 1722250), (50, 1377800), (80, 861125), (83, 830000), (100, 688900), (125, 551120), (166, 415000), (200, 344450), (250, 275560), (332, 207500), (400, 172225), (415, 166000), (500, 137780), (625, 110224), (664, 103750), (830, 83000), (1000, 68890), (1250, 55112), (1328, 51875), (1660, 41500), (2000, 34445), (2075, 33200), (2500, 27556), (3320, 20750), (4150, 16600), (5000, 13778), (6640, 10375), (6889, 10000)]