261319486

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{587}}^1$

素因数の和:780

約数の個数: 32

約数和(自身を含む): 413411040

約数和(自身を除く): 152091554

約数列:

[1, 2, 41, 61, 82, 89, 122, 178, 587, 1174, 2501, 3649, 5002, 5429, 7298, 10858, 24067, 35807, 48134, 52243, 71614, 104486, 222589, 445178, 1468087, 2141963, 2936174, 3186823, 4283926, 6373646, 130659743, 261319486]

約数ペア:

[(1, 261319486), (2, 130659743), (41, 6373646), (61, 4283926), (82, 3186823), (89, 2936174), (122, 2141963), (178, 1468087), (587, 445178), (1174, 222589), (2501, 104486), (3649, 71614), (5002, 52243), (5429, 48134), (7298, 35807), (10858, 24067)]