7801581944

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1987}}^2$

素因数の和:4012

約数の個数: 48

約数和(自身を含む): 16590659400

約数和(自身を除く): 8789077456

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 1987, 3974, 7948, 15896, 25831, 37753, 51662, 75506, 103324, 151012, 206648, 302024, 490789, 981578, 1963156, 3926312, 3948169, 7896338, 15792676, 31585352, 51326197, 75015211, 102652394, 150030422, 205304788, 300060844, 410609576, 600121688, 975197743, 1950395486, 3900790972, 7801581944]

約数ペア:

[(1, 7801581944), (2, 3900790972), (4, 1950395486), (8, 975197743), (13, 600121688), (19, 410609576), (26, 300060844), (38, 205304788), (52, 150030422), (76, 102652394), (104, 75015211), (152, 51326197), (247, 31585352), (494, 15792676), (988, 7896338), (1976, 3948169), (1987, 3926312), (3974, 1963156), (7948, 981578), (15896, 490789), (25831, 302024), (37753, 206648), (51662, 151012), (75506, 103324)]