640918512

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{342371}}^1$

素因数の和:342398

約数の個数: 60

約数和(自身を含む): 1931662824

約数和(自身を除く): 1290744312

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872, 342371, 684742, 1027113, 1369484, 2054226, 2738968, 3081339, 4108452, 4450823, 5477936, 6162678, 8216904, 8901646, 12325356, 13352469, 16433808, 17803292, 24650712, 26704938, 35606584, 40057407, 49301424, 53409876, 71213168, 80114814, 106819752, 160229628, 213639504, 320459256, 640918512]

約数ペア:

[(1, 640918512), (2, 320459256), (3, 213639504), (4, 160229628), (6, 106819752), (8, 80114814), (9, 71213168), (12, 53409876), (13, 49301424), (16, 40057407), (18, 35606584), (24, 26704938), (26, 24650712), (36, 17803292), (39, 16433808), (48, 13352469), (52, 12325356), (72, 8901646), (78, 8216904), (104, 6162678), (117, 5477936), (144, 4450823), (156, 4108452), (208, 3081339), (234, 2738968), (312, 2054226), (468, 1369484), (624, 1027113), (936, 684742), (1872, 342371)]