16217500

素因数分解:

$2^2\times 5^4\times {\mathrm{13}}^1\times {\mathrm{499}}^1$

素因数の和:536

約数の個数: 60

約数和(自身を含む): 38269000

約数和(自身を除く): 22051500

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 499, 500, 625, 650, 998, 1250, 1300, 1625, 1996, 2495, 2500, 3250, 4990, 6487, 6500, 8125, 9980, 12475, 12974, 16250, 24950, 25948, 32435, 32500, 49900, 62375, 64870, 124750, 129740, 162175, 249500, 311875, 324350, 623750, 648700, 810875, 1247500, 1621750, 3243500, 4054375, 8108750, 16217500]

約数ペア:

[(1, 16217500), (2, 8108750), (4, 4054375), (5, 3243500), (10, 1621750), (13, 1247500), (20, 810875), (25, 648700), (26, 623750), (50, 324350), (52, 311875), (65, 249500), (100, 162175), (125, 129740), (130, 124750), (250, 64870), (260, 62375), (325, 49900), (499, 32500), (500, 32435), (625, 25948), (650, 24950), (998, 16250), (1250, 12974), (1300, 12475), (1625, 9980), (1996, 8125), (2495, 6500), (2500, 6487), (3250, 4990)]