921580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:150

約数の個数: 48

約数和(自身を含む): 2177280

約数和(自身を除く): 1255700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 71, 110, 118, 142, 220, 236, 284, 295, 355, 590, 649, 710, 781, 1180, 1298, 1420, 1562, 2596, 3124, 3245, 3905, 4189, 6490, 7810, 8378, 12980, 15620, 16756, 20945, 41890, 46079, 83780, 92158, 184316, 230395, 460790, 921580]

約数ペア:

[(1, 921580), (2, 460790), (4, 230395), (5, 184316), (10, 92158), (11, 83780), (20, 46079), (22, 41890), (44, 20945), (55, 16756), (59, 15620), (71, 12980), (110, 8378), (118, 7810), (142, 6490), (220, 4189), (236, 3905), (284, 3245), (295, 3124), (355, 2596), (590, 1562), (649, 1420), (710, 1298), (781, 1180)]