51500240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1361}}^1$

素因数の和:1428

約数の個数: 80

約数和(自身を含む): 133759296

約数和(自身を除く): 82259056

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 688, 860, 880, 946, 1361, 1720, 1892, 2365, 2722, 3440, 3784, 4730, 5444, 6805, 7568, 9460, 10888, 13610, 14971, 18920, 21776, 27220, 29942, 37840, 54440, 58523, 59884, 74855, 108880, 117046, 119768, 149710, 234092, 239536, 292615, 299420, 468184, 585230, 598840, 643753, 936368, 1170460, 1197680, 1287506, 2340920, 2575012, 3218765, 4681840, 5150024, 6437530, 10300048, 12875060, 25750120, 51500240]

約数ペア:

[(1, 51500240), (2, 25750120), (4, 12875060), (5, 10300048), (8, 6437530), (10, 5150024), (11, 4681840), (16, 3218765), (20, 2575012), (22, 2340920), (40, 1287506), (43, 1197680), (44, 1170460), (55, 936368), (80, 643753), (86, 598840), (88, 585230), (110, 468184), (172, 299420), (176, 292615), (215, 239536), (220, 234092), (344, 149710), (430, 119768), (440, 117046), (473, 108880), (688, 74855), (860, 59884), (880, 58523), (946, 54440), (1361, 37840), (1720, 29942), (1892, 27220), (2365, 21776), (2722, 18920), (3440, 14971), (3784, 13610), (4730, 10888), (5444, 9460), (6805, 7568)]