641575984

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{249059}}^1$

素因数の和:249097

約数の個数: 40

約数和(自身を含む): 1482405120

約数和(自身を除く): 840829136

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 1288, 2576, 249059, 498118, 996236, 1743413, 1992472, 3486826, 3984944, 5728357, 6973652, 11456714, 13947304, 22913428, 27894608, 40098499, 45826856, 80196998, 91653712, 160393996, 320787992, 641575984]

約数ペア:

[(1, 641575984), (2, 320787992), (4, 160393996), (7, 91653712), (8, 80196998), (14, 45826856), (16, 40098499), (23, 27894608), (28, 22913428), (46, 13947304), (56, 11456714), (92, 6973652), (112, 5728357), (161, 3984944), (184, 3486826), (322, 1992472), (368, 1743413), (644, 996236), (1288, 498118), (2576, 249059)]