1561205888920

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{631}}^1\times {\mathrm{847321}}^1$

素因数の和:848036

約数の個数: 64

約数和(自身を含む): 3566479976640

約数和(自身を除く): 2005274087720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 631, 730, 1262, 1460, 2524, 2920, 3155, 5048, 6310, 12620, 25240, 46063, 92126, 184252, 230315, 368504, 460630, 847321, 921260, 1694642, 1842520, 3389284, 4236605, 6778568, 8473210, 16946420, 33892840, 61854433, 123708866, 247417732, 309272165, 494835464, 534659551, 618544330, 1069319102, 1237088660, 2138638204, 2474177320, 2673297755, 4277276408, 5346595510, 10693191020, 21386382040, 39030147223, 78060294446, 156120588892, 195150736115, 312241177784, 390301472230, 780602944460, 1561205888920]

約数ペア:

[(1, 1561205888920), (2, 780602944460), (4, 390301472230), (5, 312241177784), (8, 195150736115), (10, 156120588892), (20, 78060294446), (40, 39030147223), (73, 21386382040), (146, 10693191020), (292, 5346595510), (365, 4277276408), (584, 2673297755), (631, 2474177320), (730, 2138638204), (1262, 1237088660), (1460, 1069319102), (2524, 618544330), (2920, 534659551), (3155, 494835464), (5048, 309272165), (6310, 247417732), (12620, 123708866), (25240, 61854433), (46063, 33892840), (92126, 16946420), (184252, 8473210), (230315, 6778568), (368504, 4236605), (460630, 3389284), (847321, 1842520), (921260, 1694642)]