64435745

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{313}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 89527680

約数和(自身を除く): 25091935

約数列:

[1, 5, 11, 19, 55, 95, 197, 209, 313, 985, 1045, 1565, 2167, 3443, 3743, 5947, 10835, 17215, 18715, 29735, 41173, 61661, 65417, 205865, 308305, 327085, 678271, 1171559, 3391355, 5857795, 12887149, 64435745]

約数ペア:

[(1, 64435745), (5, 12887149), (11, 5857795), (19, 3391355), (55, 1171559), (95, 678271), (197, 327085), (209, 308305), (313, 205865), (985, 65417), (1045, 61661), (1565, 41173), (2167, 29735), (3443, 18715), (3743, 17215), (5947, 10835)]