9976400

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{509}}^1$

素因数の和:541

約数の個数: 90

約数和(自身を含む): 27936270

約数和(自身を除く): 17959870

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 280, 350, 392, 400, 490, 509, 560, 700, 784, 980, 1018, 1225, 1400, 1960, 2036, 2450, 2545, 2800, 3563, 3920, 4072, 4900, 5090, 7126, 8144, 9800, 10180, 12725, 14252, 17815, 19600, 20360, 24941, 25450, 28504, 35630, 40720, 49882, 50900, 57008, 71260, 89075, 99764, 101800, 124705, 142520, 178150, 199528, 203600, 249410, 285040, 356300, 399056, 498820, 623525, 712600, 997640, 1247050, 1425200, 1995280, 2494100, 4988200, 9976400]

約数ペア:

[(1, 9976400), (2, 4988200), (4, 2494100), (5, 1995280), (7, 1425200), (8, 1247050), (10, 997640), (14, 712600), (16, 623525), (20, 498820), (25, 399056), (28, 356300), (35, 285040), (40, 249410), (49, 203600), (50, 199528), (56, 178150), (70, 142520), (80, 124705), (98, 101800), (100, 99764), (112, 89075), (140, 71260), (175, 57008), (196, 50900), (200, 49882), (245, 40720), (280, 35630), (350, 28504), (392, 25450), (400, 24941), (490, 20360), (509, 19600), (560, 17815), (700, 14252), (784, 12725), (980, 10180), (1018, 9800), (1225, 8144), (1400, 7126), (1960, 5090), (2036, 4900), (2450, 4072), (2545, 3920), (2800, 3563)]