261415910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{401}}^1$

素因数の和:621

約数の個数: 64

約数和(自身を含む): 551093760

約数和(自身を除く): 289677850

約数列:

[1, 2, 5, 7, 10, 14, 35, 67, 70, 134, 139, 278, 335, 401, 469, 670, 695, 802, 938, 973, 1390, 1946, 2005, 2345, 2807, 4010, 4690, 4865, 5614, 9313, 9730, 14035, 18626, 26867, 28070, 46565, 53734, 55739, 65191, 93130, 111478, 130382, 134335, 188069, 268670, 278695, 325955, 376138, 390173, 557390, 651910, 780346, 940345, 1880690, 1950865, 3734513, 3901730, 7469026, 18672565, 26141591, 37345130, 52283182, 130707955, 261415910]

約数ペア:

[(1, 261415910), (2, 130707955), (5, 52283182), (7, 37345130), (10, 26141591), (14, 18672565), (35, 7469026), (67, 3901730), (70, 3734513), (134, 1950865), (139, 1880690), (278, 940345), (335, 780346), (401, 651910), (469, 557390), (670, 390173), (695, 376138), (802, 325955), (938, 278695), (973, 268670), (1390, 188069), (1946, 134335), (2005, 130382), (2345, 111478), (2807, 93130), (4010, 65191), (4690, 55739), (4865, 53734), (5614, 46565), (9313, 28070), (9730, 26867), (14035, 18626)]