865851812

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{26681}}^1$

素因数の和:26772

約数の個数: 48

約数和(自身を含む): 1852798080

約数和(自身を除く): 986946268

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 61, 76, 122, 133, 244, 266, 427, 532, 854, 1159, 1708, 2318, 4636, 8113, 16226, 26681, 32452, 53362, 106724, 186767, 373534, 506939, 747068, 1013878, 1627541, 2027756, 3255082, 3548573, 6510164, 7097146, 11392787, 14194292, 22785574, 30923279, 45571148, 61846558, 123693116, 216462953, 432925906, 865851812]

約数ペア:

[(1, 865851812), (2, 432925906), (4, 216462953), (7, 123693116), (14, 61846558), (19, 45571148), (28, 30923279), (38, 22785574), (61, 14194292), (76, 11392787), (122, 7097146), (133, 6510164), (244, 3548573), (266, 3255082), (427, 2027756), (532, 1627541), (854, 1013878), (1159, 747068), (1708, 506939), (2318, 373534), (4636, 186767), (8113, 106724), (16226, 53362), (26681, 32452)]