289588040

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{21107}}^1$

素因数の和:21139

約数の個数: 64

約数和(自身を含む): 759888000

約数和(自身を除く): 470299960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2744, 3430, 6860, 13720, 21107, 42214, 84428, 105535, 147749, 168856, 211070, 295498, 422140, 590996, 738745, 844280, 1034243, 1181992, 1477490, 2068486, 2954980, 4136972, 5171215, 5909960, 7239701, 8273944, 10342430, 14479402, 20684860, 28958804, 36198505, 41369720, 57917608, 72397010, 144794020, 289588040]

約数ペア:

[(1, 289588040), (2, 144794020), (4, 72397010), (5, 57917608), (7, 41369720), (8, 36198505), (10, 28958804), (14, 20684860), (20, 14479402), (28, 10342430), (35, 8273944), (40, 7239701), (49, 5909960), (56, 5171215), (70, 4136972), (98, 2954980), (140, 2068486), (196, 1477490), (245, 1181992), (280, 1034243), (343, 844280), (392, 738745), (490, 590996), (686, 422140), (980, 295498), (1372, 211070), (1715, 168856), (1960, 147749), (2744, 105535), (3430, 84428), (6860, 42214), (13720, 21107)]