678697900

素因数分解:

$2^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{131}}^1\times {\mathrm{503}}^1$

素因数の和:751

約数の個数: 72

約数和(自身を含む): 1501403904

約数和(自身を除く): 822706004

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 103, 131, 206, 262, 412, 503, 515, 524, 655, 1006, 1030, 1310, 2012, 2060, 2515, 2575, 2620, 3275, 5030, 5150, 6550, 10060, 10300, 12575, 13100, 13493, 25150, 26986, 50300, 51809, 53972, 65893, 67465, 103618, 131786, 134930, 207236, 259045, 263572, 269860, 329465, 337325, 518090, 658930, 674650, 1036180, 1295225, 1317860, 1349300, 1647325, 2590450, 3294650, 5180900, 6589300, 6786979, 13573958, 27147916, 33934895, 67869790, 135739580, 169674475, 339348950, 678697900]

約数ペア:

[(1, 678697900), (2, 339348950), (4, 169674475), (5, 135739580), (10, 67869790), (20, 33934895), (25, 27147916), (50, 13573958), (100, 6786979), (103, 6589300), (131, 5180900), (206, 3294650), (262, 2590450), (412, 1647325), (503, 1349300), (515, 1317860), (524, 1295225), (655, 1036180), (1006, 674650), (1030, 658930), (1310, 518090), (2012, 337325), (2060, 329465), (2515, 269860), (2575, 263572), (2620, 259045), (3275, 207236), (5030, 134930), (5150, 131786), (6550, 103618), (10060, 67465), (10300, 65893), (12575, 53972), (13100, 51809), (13493, 50300), (25150, 26986)]