865110820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{39359}}^1$

素因数の和:39532

約数の個数: 48

約数和(自身を含む): 2089543680

約数和(自身を除く): 1224432860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1570, 2198, 3140, 4396, 5495, 10990, 21980, 39359, 78718, 157436, 196795, 275513, 393590, 551026, 787180, 1102052, 1377565, 2755130, 5510260, 6179363, 12358726, 24717452, 30896815, 43255541, 61793630, 86511082, 123587260, 173022164, 216277705, 432555410, 865110820]

約数ペア:

[(1, 865110820), (2, 432555410), (4, 216277705), (5, 173022164), (7, 123587260), (10, 86511082), (14, 61793630), (20, 43255541), (28, 30896815), (35, 24717452), (70, 12358726), (140, 6179363), (157, 5510260), (314, 2755130), (628, 1377565), (785, 1102052), (1099, 787180), (1570, 551026), (2198, 393590), (3140, 275513), (4396, 196795), (5495, 157436), (10990, 78718), (21980, 39359)]