25831820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{613}}^1$

素因数の和:679

約数の個数: 72

約数和(自身を含む): 64676304

約数和(自身を除く): 38844484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 430, 490, 602, 613, 860, 980, 1204, 1226, 1505, 2107, 2452, 3010, 3065, 4214, 4291, 6020, 6130, 8428, 8582, 10535, 12260, 17164, 21070, 21455, 26359, 30037, 42140, 42910, 52718, 60074, 85820, 105436, 120148, 131795, 150185, 184513, 263590, 300370, 369026, 527180, 600740, 738052, 922565, 1291591, 1845130, 2583182, 3690260, 5166364, 6457955, 12915910, 25831820]

約数ペア:

[(1, 25831820), (2, 12915910), (4, 6457955), (5, 5166364), (7, 3690260), (10, 2583182), (14, 1845130), (20, 1291591), (28, 922565), (35, 738052), (43, 600740), (49, 527180), (70, 369026), (86, 300370), (98, 263590), (140, 184513), (172, 150185), (196, 131795), (215, 120148), (245, 105436), (301, 85820), (430, 60074), (490, 52718), (602, 42910), (613, 42140), (860, 30037), (980, 26359), (1204, 21455), (1226, 21070), (1505, 17164), (2107, 12260), (2452, 10535), (3010, 8582), (3065, 8428), (4214, 6130), (4291, 6020)]